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  <xs:element id="abg_LeasesLiability" abstract="false" name="LeasesLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetsAcquisitionDomain" abstract="true" name="AssetsAcquisitionDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_RepaymentsOfFloorPlanPayablesNonTradeDivestitures" abstract="false" name="RepaymentsOfFloorPlanPayablesNonTradeDivestitures" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_DebtInstrumentConsolidatedTotalLeverageRatio" abstract="false" name="DebtInstrumentConsolidatedTotalLeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="abg_A2019SeniorCreditFacilityMember" abstract="true" name="A2019SeniorCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_AssetsAcquisitionAxis" abstract="true" name="AssetsAcquisitionAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="abg_LHMDealershipsMember" abstract="true" name="LHMDealershipsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_RevenueFinanceAndInsurance" abstract="false" name="RevenueFinanceAndInsurance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_VacantPropertyMember" abstract="true" name="VacantPropertyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsMaximumPercentofTargetEarned" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsMaximumPercentofTargetEarned" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_OtherNoncashIncomeExpenseOther" abstract="false" name="OtherNoncashIncomeExpenseOther" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_NewvehicleMember" abstract="true" name="NewvehicleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_GoodwillReclassifiedFromToAssetsHeldForSale" abstract="false" name="GoodwillReclassifiedFromToAssetsHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AccruedFinanceAndInsuranceChargebacksCurrent" abstract="false" name="AccruedFinanceAndInsuranceChargebacksCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_ProceedsFromFloorPlanBorrowingsNonTrade" abstract="false" name="ProceedsFromFloorPlanBorrowingsNonTrade" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="abg_ReastatedCreditAgreementMember" abstract="true" name="ReastatedCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableNonTrade" abstract="false" name="FloorPlanNotesPayableNonTrade" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_OperatingLeaseLiabilityHeldforSaleNoncurrent" abstract="false" name="OperatingLeaseLiabilityHeldforSaleNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_A2018WellsFargoMasterLoanFacilityMember" abstract="true" name="A2018WellsFargoMasterLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_ManufacturerReceivablesMember" abstract="true" name="ManufacturerReceivablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_RedemptionAmountProRataBasis" abstract="false" name="RedemptionAmountProRataBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_SummaryofAssetsHeldforSaleandLiabilitiesAssociatedwithAssetsHeldforSaleTableTextBlock" abstract="false" name="SummaryofAssetsHeldforSaleandLiabilitiesAssociatedwithAssetsHeldforSaleTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_UnclaimedProperty" abstract="false" name="UnclaimedProperty" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssets" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetAcquisitionNewVehicleFloorPlanFacility" abstract="false" name="AssetAcquisitionNewVehicleFloorPlanFacility" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedGoodwill" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedGoodwill" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_BusinessCombinationandDivestituresDisclosureTextBlock" abstract="false" name="BusinessCombinationandDivestituresDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_NewVehicleFloorPlanFacilityMember" abstract="true" name="NewVehicleFloorPlanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_DerivativeLiabilityNotionalAmountAtMaturity" abstract="false" name="DerivativeLiabilityNotionalAmountAtMaturity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_EntityWideRevenuesMajorBrandPercentage" abstract="false" name="EntityWideRevenuesMajorBrandPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_AccruedFinanceAndInsuranceChargebacksNoncurrent" abstract="false" name="AccruedFinanceAndInsuranceChargebacksNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_PartsAndAccessoriesMember" abstract="false" name="PartsAndAccessoriesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_LineofCreditFacilityAmortizationSchedule" abstract="false" name="LineofCreditFacilityAmortizationSchedule" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="abg_LineOfCreditFacilityNumberOfQuarterlyPrincipalPayments" abstract="false" name="LineOfCreditFacilityNumberOfQuarterlyPrincipalPayments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_UsedVehicleFloorPlanFacilityMember" abstract="true" name="UsedVehicleFloorPlanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_AssetCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentGoodwill" abstract="false" name="AssetCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentGoodwill" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_LongTermDebtAndLeaseObligationsCurrentAndNoncurrentIncludingUnamortizedPremiumDiscount" abstract="false" name="LongTermDebtAndLeaseObligationsCurrentAndNoncurrentIncludingUnamortizedPremiumDiscount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_IntangibleAssetsIncludingGoodwillPeriodforFederalandStateTaxDeductions" abstract="false" name="IntangibleAssetsIncludingGoodwillPeriodforFederalandStateTaxDeductions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="abg_NumberOfNewVehicleDealershipsAcquired" abstract="false" name="NumberOfNewVehicleDealershipsAcquired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableTradeTableTextBlock" abstract="false" name="FloorPlanNotesPayableTradeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_A2018BofARealEstateFacilityMember" abstract="true" name="A2018BofARealEstateFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_NumberOfAutoAuctions" abstract="false" name="NumberOfAutoAuctions" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_MortgageAgreementAxis" abstract="true" name="MortgageAgreementAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="abg_ComponentsOfInventoryAxis" abstract="true" name="ComponentsOfInventoryAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="abg_VehicleReceivablesMember" abstract="true" name="VehicleReceivablesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_BondsAvailableForSaleMember" abstract="true" name="BondsAvailableForSaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_SixPointZeroPercentSeniorSubordinatedNotesDue2024Member" abstract="true" name="SixPointZeroPercentSeniorSubordinatedNotesDue2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_ComponentOfInventoryDomain" abstract="true" name="ComponentOfInventoryDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_InvestmentsNoncurrent" abstract="false" name="InvestmentsNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_DeferredTaxLiabilitiesIntangibleassetamortization" abstract="false" name="DeferredTaxLiabilitiesIntangibleassetamortization" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AgeFiftyOrMoreMember" abstract="true" name="AgeFiftyOrMoreMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofInstrumentsProvidedforGrant" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofInstrumentsProvidedforGrant" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="abg_ChangeinOperatingLeaseRightofUseAsset" abstract="false" name="ChangeinOperatingLeaseRightofUseAsset" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetsAcquisitionTransactionCosts" abstract="false" name="AssetsAcquisitionTransactionCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_OtherMortgageDebtMember" abstract="true" name="OtherMortgageDebtMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_NewVehicleandUsedVehicleFloorPlanMember" abstract="true" name="NewVehicleandUsedVehicleFloorPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_FourPointSevenFivePercentSeniorNotesdue2030Member" abstract="true" name="FourPointSevenFivePercentSeniorNotesdue2030Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_A2019BankOfAmericaRevolvingCreditFacilityMember" abstract="true" name="A2019BankOfAmericaRevolvingCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_AccruedLicensesAndRegulatoryFeesCurrent" abstract="false" name="AccruedLicensesAndRegulatoryFeesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_TypeOfBrandAxis" abstract="true" name="TypeOfBrandAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="abg_A2019EquityandIncentiveCompensationPlanMember" abstract="true" name="A2019EquityandIncentiveCompensationPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_AssetPurchaseAgreementMember" abstract="true" name="AssetPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_TypeOfBrandDomain" abstract="true" name="TypeOfBrandDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_EmployeeRetirementPlanGroupsOfParticipantsDomain" abstract="true" name="EmployeeRetirementPlanGroupsOfParticipantsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_TaxesPayableCurrentExcludingIncomeTaxesPayable" abstract="false" name="TaxesPayableCurrentExcludingIncomeTaxesPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoanerVehicles" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoanerVehicles" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_StatementOfCashFlowsPolicyPolicyTextBlock" abstract="false" name="StatementOfCashFlowsPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_MortgageNotesPayableLiabilitiesAssociatedwithAssetsHeldforSale" abstract="false" name="MortgageNotesPayableLiabilitiesAssociatedwithAssetsHeldforSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_MortgageAgreementDomain" abstract="true" name="MortgageAgreementDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_DeferredTaxLiabilitiesOperatingLeaseLiabilities" abstract="false" name="DeferredTaxLiabilitiesOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetAcquisitionSellerNotes" abstract="false" name="AssetAcquisitionSellerNotes" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_FourPointZeroZeroPercentPromissoryNoteDueAugust2021Member" abstract="true" name="FourPointZeroZeroPercentPromissoryNoteDueAugust2021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_FivePointZeroZeroPercentPercentSeniorNotesDue2029Member" abstract="true" name="FivePointZeroZeroPercentPercentSeniorNotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_ScheduleOfRevenuesByMajorBrandTable" abstract="true" name="ScheduleOfRevenuesByMajorBrandTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="abg_OtherAssetsCurrentServiceLoanerVehicles" abstract="false" name="OtherAssetsCurrentServiceLoanerVehicles" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_CaptiveMortgageMember" abstract="true" name="CaptiveMortgageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_NewVehiclesMember" abstract="false" name="NewVehiclesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_SaleLeasebackLiabilityNoncurrent" abstract="false" name="SaleLeasebackLiabilityNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetAcquisitionCashAndEquivalents" abstract="false" name="AssetAcquisitionCashAndEquivalents" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_DisposalGroupIncludingDiscontinuedOperationCurrentMaturitiesofLongtermDebt" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationCurrentMaturitiesofLongtermDebt" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_NumberOfUsedCarsStoresAcquired" abstract="false" name="NumberOfUsedCarsStoresAcquired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_RedemptionAmountProRataBasisPercent" abstract="false" name="RedemptionAmountProRataBasisPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_AssetCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment" abstract="false" name="AssetCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPropertyPlantAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_NumberOfVehicleBrands" abstract="false" name="NumberOfVehicleBrands" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_ValueOfBusinessesAcquiredVOBA" abstract="false" name="ValueOfBusinessesAcquiredVOBA" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_RestrictedPaymentsCapacityPercentOfNetIncome" abstract="false" name="RestrictedPaymentsCapacityPercentOfNetIncome" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_AssetAcquisitionPurchasePrice" abstract="false" name="AssetAcquisitionPurchasePrice" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_InterestRateSwap2Member" abstract="true" name="InterestRateSwap2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_DefinedContributionPlanEmployerMatchingContributionEmploymentRequirementPeriodForMatchingEligibilityMinimum" abstract="false" name="DefinedContributionPlanEmployerMatchingContributionEmploymentRequirementPeriodForMatchingEligibilityMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="abg_LineofCreditFacilityNumberofEqualMonthlyPrincipalPayments" abstract="false" name="LineofCreditFacilityNumberofEqualMonthlyPrincipalPayments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherLiabilities" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_SaleofvehiclepartsandaccessoriesMember" abstract="true" name="SaleofvehiclepartsandaccessoriesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_ChangesToFinanceLeaseRightOfUseAssetResultingFromLeaseReassessmentEvent" abstract="false" name="ChangesToFinanceLeaseRightOfUseAssetResultingFromLeaseReassessmentEvent" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_DeferredCommissionsMember" abstract="true" name="DeferredCommissionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_OperatingLeaseLiabilityNoncurrent1" abstract="false" name="OperatingLeaseLiabilityNoncurrent1" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_ShareRepurchasePolicyPolicyTextBlock" abstract="false" name="ShareRepurchasePolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_LongTermDebtAndLeaseObligationsCurrentAndNoncurrent" abstract="false" name="LongTermDebtAndLeaseObligationsCurrentAndNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_UsedVehicleRevolvingFloorPlanFacilityMember" abstract="true" name="UsedVehicleRevolvingFloorPlanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_NumberOfCollisionRepairCenters" abstract="false" name="NumberOfCollisionRepairCenters" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_ToyotaMotorSalesU.S.A.Inc.ToyotaandLexusMember" abstract="true" name="ToyotaMotorSalesU.S.A.Inc.ToyotaandLexusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_SellerNoteMember" abstract="true" name="SellerNoteMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_AccountingPoliciesLineItems" abstract="true" name="AccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="abg_EmployeeRetirementPlanGroupsOfParticipantsAxis" abstract="true" name="EmployeeRetirementPlanGroupsOfParticipantsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="abg_InterestRateSwap3Member" abstract="true" name="InterestRateSwap3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_ReductionToNewVehicleCostOfSalesByAutomobileManufacturerIncentives" abstract="false" name="ReductionToNewVehicleCostOfSalesByAutomobileManufacturerIncentives" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableTradeTextBlock" abstract="false" name="FloorPlanNotesPayableTradeTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_NumberOfSubsidiaries" abstract="false" name="NumberOfSubsidiaries" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_NewVehicleFloorPlanMember" abstract="true" name="NewVehicleFloorPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_StandAloneUsedVehicleDealerships" abstract="false" name="StandAloneUsedVehicleDealerships" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_UsedvehicleretailMember" abstract="true" name="UsedvehicleretailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_Contractsintransit" abstract="false" name="Contractsintransit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_RepaymentsOfFloorPlanPayablesNonTrade" abstract="false" name="RepaymentsOfFloorPlanPayablesNonTrade" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_CashPaidDuringPeriodRelatedToFloorPlanInterest" abstract="false" name="CashPaidDuringPeriodRelatedToFloorPlanInterest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_PartsandservicesMember" abstract="true" name="PartsandservicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_CostOfSaleFinanceAndInsurance" abstract="false" name="CostOfSaleFinanceAndInsurance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_DefinedContributionPlanEmployersMatchingContributionVestingPeriod" abstract="false" name="DefinedContributionPlanEmployersMatchingContributionVestingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="abg_SaleLeasebackTransaction" abstract="false" name="SaleLeasebackTransaction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAdjustments" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAdjustments" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_LineofCreditFacilityRepaymentSchedule" abstract="false" name="LineofCreditFacilityRepaymentSchedule" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="abg_RealEstateNotCurrentlyUsedinOperationsMember" abstract="true" name="RealEstateNotCurrentlyUsedinOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_NumberOfCollisionCentersAcquired" abstract="false" name="NumberOfCollisionCentersAcquired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_FourPointSixTwoFivePercentSeniorNotesDue2029Member" abstract="true" name="FourPointSixTwoFivePercentSeniorNotesDue2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableTrade" abstract="false" name="FloorPlanNotesPayableTrade" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_NewandusedvehicleMember" abstract="true" name="NewandusedvehicleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_FinanceandinsuranceMember" abstract="true" name="FinanceandinsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_BankOfAmericaNAMember" abstract="true" name="BankOfAmericaNAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_InsuranceMember" abstract="true" name="InsuranceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_LoanerVehiclesAmountTransferredFromOtherCurrentAssetsToInventory" abstract="false" name="LoanerVehiclesAmountTransferredFromOtherCurrentAssetsToInventory" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedExpectedFutureRecognitionYearThree" abstract="false" name="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedExpectedFutureRecognitionYearThree" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_NumberOfDealershipLocations" abstract="false" name="NumberOfDealershipLocations" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableNonTradeTableTextBlock" abstract="false" name="FloorPlanNotesPayableNonTradeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_AccountingPoliciesTable" abstract="true" name="AccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="abg_RestrictedPaymentsCapacityPercentOfCashProceedsReceiveFromSaleOfEquityInterests" abstract="false" name="RestrictedPaymentsCapacityPercentOfCashProceedsReceiveFromSaleOfEquityInterests" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableNonTradeNewGross" abstract="false" name="FloorPlanNotesPayableNonTradeNewGross" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_IncreaseDecreaseInFloorPlanNotesPayableTrade" abstract="false" name="IncreaseDecreaseInFloorPlanNotesPayableTrade" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_NumberofCollisionCentersSold" abstract="false" name="NumberofCollisionCentersSold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_DisposalGroupIncludingDiscontinuedOperationLongtermDebt" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationLongtermDebt" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_NumberofDealershipLocationsAcquired" abstract="false" name="NumberofDealershipLocationsAcquired" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedExpectedFutureRecognitionNextTwelveMonths" abstract="false" name="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedExpectedFutureRecognitionNextTwelveMonths" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_LineofCreditFacilityQuarterlyPrincipalPaymentsasPercentofInitialAmount" abstract="false" name="LineofCreditFacilityQuarterlyPrincipalPaymentsasPercentofInitialAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_NumberOfFranchiseSold" abstract="false" name="NumberOfFranchiseSold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_ScheduleOfRevenuesByMajorBrandLineItems" abstract="true" name="ScheduleOfRevenuesByMajorBrandLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="abg_A2015WellsFargoMasterLoanFacilityMember" abstract="true" name="A2015WellsFargoMasterLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_AssetsAndLiabilitiesLesseeTableTextBlock" abstract="false" name="AssetsAndLiabilitiesLesseeTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_NumberOfFranchisesSold" abstract="false" name="NumberOfFranchisesSold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_ScheduleOfBusinessOrganizationTable" abstract="true" name="ScheduleOfBusinessOrganizationTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="abg_OneMonthLondonInterbankOfferedRateMember" abstract="true" name="OneMonthLondonInterbankOfferedRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_MercedesBenzUSALLCMercedesBenzSmartandSprinterMember" abstract="true" name="MercedesBenzUSALLCMercedesBenzSmartandSprinterMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_UsedvehiclewholesaleMember" abstract="true" name="UsedvehiclewholesaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_IndefiniteLivedIntangibleAssetsReclassifiedToHeldForSale" abstract="false" name="IndefiniteLivedIntangibleAssetsReclassifiedToHeldForSale" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_PaymentsToAcquirePreviouslyLeasedRealEstate" abstract="false" name="PaymentsToAcquirePreviouslyLeasedRealEstate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_PreliminaryPaymentsToAcquireBusinessesNetOfCashAcquired" abstract="false" name="PreliminaryPaymentsToAcquireBusinessesNetOfCashAcquired" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_TerminationofBusinessAcquisitionPaymentofLiquidatedDamages" abstract="false" name="TerminationofBusinessAcquisitionPaymentofLiquidatedDamages" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_DeferredTaxAssetsTaxDeferredExpenseDeferredRevenue" abstract="false" name="DeferredTaxAssetsTaxDeferredExpenseDeferredRevenue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_BMWofNorthAmericaLLCBMWandMiniMember" abstract="true" name="BMWofNorthAmericaLLCBMWandMiniMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_A2013BofARealEstateFacilityMember" abstract="true" name="A2013BofARealEstateFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_DealershipsMember" abstract="true" name="DealershipsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_ScheduleOfMortgageNotesPayableTableTextBlock" abstract="false" name="ScheduleOfMortgageNotesPayableTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedRealEstate" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedRealEstate" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_VehiclerepairandmaintenanceservicesMember" abstract="true" name="VehiclerepairandmaintenanceservicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_LoanerVehiclePeriodOfUseBeforeSale" abstract="false" name="LoanerVehiclePeriodOfUseBeforeSale" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="abg_DisposalGroupIncludingDiscontinuedOperationLoanersLiabilities" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationLoanersLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_OperatingLeaseLiabilityOperatingActivities" abstract="false" name="OperatingLeaseLiabilityOperatingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_FordMotorCompanyFordandLincolnMember" abstract="true" name="FordMotorCompanyFordandLincolnMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_DeferredTaxLiabilitiesDepreciation" abstract="false" name="DeferredTaxLiabilitiesDepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_LongTermDebtAndLeaseObligations1" abstract="false" name="LongTermDebtAndLeaseObligations1" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_ScheduleOfRevenueByMajorBrandTableTextBlock" abstract="false" name="ScheduleOfRevenueByMajorBrandTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_NumberOfFranchises" abstract="false" name="NumberOfFranchises" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_OtherTradeAccountsReceivableMember" abstract="true" name="OtherTradeAccountsReceivableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_LeasesRightofUseAsset" abstract="false" name="LeasesRightofUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_UsedVehicleWholesaleBusiness" abstract="false" name="UsedVehicleWholesaleBusiness" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="abg_DeferredPayrollTaxNoncurrent" abstract="false" name="DeferredPayrollTaxNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_UsedVehiclesMember" abstract="false" name="UsedVehiclesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_FloorPlanBorrowingsAcquisitions" abstract="false" name="FloorPlanBorrowingsAcquisitions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_DisposalGroupIncludingDiscontinuedOperationLoaners" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationLoaners" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_A2021BofARealEstateFacilityMember" abstract="true" name="A2021BofARealEstateFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_AssetAcquisitionRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet" abstract="false" name="AssetAcquisitionRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_MaximumRedemptionAsPercentFromAggregatePrincipalAmount" abstract="false" name="MaximumRedemptionAsPercentFromAggregatePrincipalAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_DeferredIncomeTaxExpenseBenefitContinuingOperationsAndDiscontinuedOperations" abstract="false" name="DeferredIncomeTaxExpenseBenefitContinuingOperationsAndDiscontinuedOperations" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_AssetsHeldforSaleandLiabilitiesAssociatedwithAssetsHeldforSalePolicyPolicyTextBlock" abstract="false" name="AssetsHeldforSaleandLiabilitiesAssociatedwithAssetsHeldforSalePolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableTradeGross" abstract="false" name="FloorPlanNotesPayableTradeGross" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_NotesPayableLoanerVehicleCurrent" abstract="false" name="NotesPayableLoanerVehicleCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_SharebasedCompensationArrangementbySharebasedPaymentAwardPercentofTargetNumberofSharesEarned" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardPercentofTargetNumberofSharesEarned" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_DeferredTaxAssetsRightofUseAssets" abstract="false" name="DeferredTaxAssetsRightofUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_BusinessCombinationConsiderationTransferredOtherRelease" abstract="false" name="BusinessCombinationConsiderationTransferredOtherRelease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_InterestRateSwap1.1Member" abstract="true" name="InterestRateSwap1.1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableNonTradeLiabilitiesAssociatedwithAssetsHeldforSale" abstract="false" name="FloorPlanNotesPayableNonTradeLiabilitiesAssociatedwithAssetsHeldforSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedExpectedFutureRecognitionYearTwo" abstract="false" name="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedExpectedFutureRecognitionYearTwo" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_OperatingLeaseAssetHeldforSale" abstract="false" name="OperatingLeaseAssetHeldforSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_ProceedsFromIssuanceOfCommonStockSecondaryOfferingShares" abstract="false" name="ProceedsFromIssuanceOfCommonStockSecondaryOfferingShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="abg_DeferredTaxLiabilitiesTaxDeferredExpenseReservesAndAccrualsUnearnedPremiums" abstract="false" name="DeferredTaxLiabilitiesTaxDeferredExpenseReservesAndAccrualsUnearnedPremiums" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_ComponentsOfInventoryLineItems" abstract="true" name="ComponentsOfInventoryLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="abg_FloorPlanNotesPayableNonTradeUsedGross" abstract="false" name="FloorPlanNotesPayableNonTradeUsedGross" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_EntityWideRevenuesMajorBrandsDisclosurePercentageThreshold" abstract="false" name="EntityWideRevenuesMajorBrandsDisclosurePercentageThreshold" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="abg_InterestRateSwapLiabilitiesNoncurrent" abstract="false" name="InterestRateSwapLiabilitiesNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="abg_InterestRateSwap1Member" abstract="true" name="InterestRateSwap1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="abg_MortgageAndOtherAssetsBackedSecuritiesMember" abstract="true" name="MortgageAndOtherAssetsBackedSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
