CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Total revenues	$ 5,383.4	$ 5,254.1	$ 10,464.5	$ 10,078.7
Cost of sales:
Total cost of sales	4,566.1	4,482.8	8,872.9	8,583.6
Gross profit	817.3	771.3	1,591.6	1,495.1
Selling, general and administrative expenses	622.0	582.7	1,223.7	1,141.6
Depreciation	23.3	24.5	45.7	45.3
Operating income	172.0	164.1	322.2	308.2
Floor plan interest expense	(15.5)	(13.1)	(29.2)	(25.9)
Other interest expense	(26.4)	(19.5)	(51.4)	(36.7)
Equity in earnings of affiliates	26.8	12.0	40.0	17.5
Income from continuing operations before income taxes	156.9	143.5	281.6	263.1
Income taxes	(50.2)	(47.3)	(91.3)	(86.7)
Income from continuing operations	106.7	96.2	190.3	176.4
Income (loss) from discontinued operations, net of tax	0.2	(1.2)	(0.4)	(1.2)
Net income	106.9	95.0	189.9	175.2
Less: Income attributable to non-controlling interests	0.7	1.5	1.1	2.4
Net income attributable to Penske Automotive Group common stockholders	$ 106.2	$ 93.5	$ 188.8	$ 172.8
Basic earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 1.23	$ 1.11	$ 2.20	$ 2.01
Discontinued operations (in dollars per share)	0.00	(0.01)	0.00	(0.01)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 1.23	$ 1.10	$ 2.20	$ 1.99
Shares used in determining basic earnings per share (in shares)	86.1	85.3	85.9	86.7
Diluted earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 1.23	$ 1.11	$ 2.20	$ 2.00
Discontinued operations (in dollars per share)	0.00	(0.01)	0.00	(0.01)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 1.23	$ 1.10	$ 2.20	$ 1.99
Shares used in determining diluted earnings per share (in shares)	86.1	85.3	85.9	86.8
Amounts attributable to Penske Automotive Group common stockholders:
Income from continuing operations	$ 106.7	$ 96.2	$ 190.3	$ 176.4
Less: Income attributable to non-controlling interests	0.7	1.5	1.1	2.4
Income from continuing operations, net of tax	106.0	94.7	189.2	174.0
Income (loss) from discontinued operations, net of tax	0.2	(1.2)	(0.4)	(1.2)
Net income attributable to Penske Automotive Group common stockholders	$ 106.2	$ 93.5	$ 188.8	$ 172.8
Cash dividends per share (in dollars per share)	$ 0.31	$ 0.27	$ 0.61	$ 0.53
Retail Automotive Dealership
Revenue:
Total revenues	$ 5,040.7	$ 4,836.8	$ 9,797.1	$ 9,349.7
Cost of sales:
Total cost of sales	4,294.7	4,134.8	8,342.8	7,982.7
Retail Commercial Truck Dealership
Revenue:
Total revenues	228.5	309.5	440.2	516.2
Cost of sales:
Total cost of sales	188.5	271.2	363.8	444.7
Commercial Vehicle Distribution and Other
Revenue:
Total revenues	114.2	107.8	227.2	212.8
Cost of sales:
Total cost of sales	$ 82.9	$ 76.8	$ 166.3	$ 156.2