CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue:
Total revenues	$ 17,177.2us-gaap_SalesRevenueNet	$ 14,443.9us-gaap_SalesRevenueNet	$ 12,902.6us-gaap_SalesRevenueNet
Cost of sales:
Total cost of sales	14,603.5us-gaap_CostOfGoodsAndServicesSold	12,246.9us-gaap_CostOfGoodsAndServicesSold	10,927.0us-gaap_CostOfGoodsAndServicesSold
Gross profit	2,573.7us-gaap_GrossProfit	2,197.0us-gaap_GrossProfit	1,975.6us-gaap_GrossProfit
Selling, general and administrative expenses	1,999.6	1,705.6	1,558.3
Depreciation	70.0us-gaap_Depreciation	59.6us-gaap_Depreciation	52.2us-gaap_Depreciation
Operating income	504.1us-gaap_OperatingIncomeLoss	431.8us-gaap_OperatingIncomeLoss	365.1us-gaap_OperatingIncomeLoss
Floor plan interest expense	(46.1)pag_FloorPlanInterestExpense	(43.1)pag_FloorPlanInterestExpense	(38.0)pag_FloorPlanInterestExpense
Other interest expense	(52.8)	(45.2)	(46.1)
Equity in earnings of affiliates	40.8	30.7	27.6
Gain on investment	16.0
Debt redemption costs			(17.8)us-gaap_GainLossOnSaleOfDebtInvestments
Income from continuing operations before income taxes	462.0	374.2	290.8
Income taxes	(153.2)us-gaap_IncomeTaxExpenseBenefit	(123.9)us-gaap_IncomeTaxExpenseBenefit	(94.6)us-gaap_IncomeTaxExpenseBenefit
Income from continuing operations	308.8	250.3	196.2
Loss from discontinued operations, net of tax	(18.7)	(4.6)	(9.0)
Net income	290.1us-gaap_ProfitLoss	245.7us-gaap_ProfitLoss	187.2us-gaap_ProfitLoss
Less: Income attributable to non-controlling interests	3.4	1.5	1.7
Net income attributable to Penske Automotive Group common stockholders	286.7us-gaap_NetIncomeLoss	244.2us-gaap_NetIncomeLoss	185.5us-gaap_NetIncomeLoss
Basic earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 3.38	$ 2.76	$ 2.15
Discontinued operations (in dollars per share)	$ (0.21)	$ (0.05)	$ (0.10)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.17us-gaap_EarningsPerShareBasic	$ 2.71us-gaap_EarningsPerShareBasic	$ 2.05us-gaap_EarningsPerShareBasic
Shares used in determining basic earnings per share	90,318,839	90,273,747	90,318,315
Diluted earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 3.38	$ 2.75	$ 2.15
Discontinued operations (in dollars per share)	$ (0.21)	$ (0.05)	$ (0.10)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.17us-gaap_EarningsPerShareDiluted	$ 2.70us-gaap_EarningsPerShareDiluted	$ 2.05us-gaap_EarningsPerShareDiluted
Shares used in determining diluted earnings per share	90,354,839	90,330,621	90,342,315
Amounts attributable to Penske Automotive Group common stockholders:
Income from continuing operations	308.8	250.3	196.2
Less: Income attributable to non-controlling interests	3.4	1.5	1.7
Income from continuing operations, net of tax	305.4	248.8	194.5
Loss from discontinued operations, net of tax	(18.7)	(4.6)	(9.0)
Net income attributable to Penske Automotive Group common stockholders	286.7us-gaap_NetIncomeLoss	244.2us-gaap_NetIncomeLoss	185.5us-gaap_NetIncomeLoss
New vehicle
Revenue:
Total revenues	8,672.6	7,506.6	6,659.2
Cost of sales:
Total cost of sales	8,000.1	6,928.0	6,120.3
Used vehicle
Revenue:
Total revenues	4,947.0	4,187.5	3,657.2
Cost of sales:
Total cost of sales	4,612.2	3,881.0	3,378.6
Finance and insurance, net
Revenue:
Total revenues	435.8	370.2	318.3
Service and parts
Revenue:
Total revenues	1,712.6	1,528.6	1,424.2
Cost of sales:
Total cost of sales	693.4	621.7	595.0
Fleet and wholesale
Revenue:
Total revenues	834.7	698.4	843.7
Cost of sales:
Total cost of sales	825.1	687.8	833.1
Commercial vehicle and other
Revenue:
Total revenues	574.5	152.6
Cost of sales:
Total cost of sales	$ 472.7	$ 128.4

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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