CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue:
Total revenues	$ 5,971.6	$ 5,967.6	$ 14,631.8	$ 17,287.8
Cost of sales:
Total cost of sales	5,015.1	5,097.9	12,345.7	14,698.8
Gross profit	956.5	869.7	2,286.1	2,589.0
Selling, general and administrative expenses	643.3	672.8	1,738.7	2,008.1
Depreciation	29.0	27.5	85.4	81.0
Operating income	284.2	169.4	462.0	499.9
Floor plan interest expense	(8.0)	(21.4)	(37.4)	(64.2)
Other interest expense	(30.8)	(32.9)	(90.9)	(93.2)
Equity in earnings of affiliates	66.2	43.3	110.6	109.6
Income from continuing operations before income taxes	311.6	158.4	444.3	452.1
Income taxes	(64.1)	(42.4)	(100.7)	(118.6)
Income from continuing operations	247.5	116.0	343.6	333.5
Income from discontinued operations, net of tax	0.1	0.1	0.3	0.3
Net income	247.6	116.1	343.9	333.8
Less: Income (loss) attributable to non-controlling interests	1.0	(0.1)	0.5	(0.4)
Net income attributable to Penske Automotive Group common stockholders	$ 246.6	$ 116.2	$ 343.4	$ 334.2
Basic earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 3.07	$ 1.42	$ 4.27	$ 4.02
Discontinued operations (in dollars per share)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.07	$ 1.42	$ 4.27	$ 4.03
Shares used in determining basic earnings per share (in shares)	80,340,076	81,643,175	80,368,589	82,968,130
Diluted earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 3.07	$ 1.42	$ 4.27	$ 4.02
Discontinued operations (in dollars per share)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.07	$ 1.42	$ 4.27	$ 4.03
Shares used in determining diluted earnings per share (in shares)	80,380,076	81,683,175	80,408,589	83,008,130
Amounts attributable to Penske Automotive Group common stockholders:
Income from continuing operations	$ 247.5	$ 116.0	$ 343.6	$ 333.5
Less: Income (loss) attributable to non-controlling interests	1.0	(0.1)	0.5	(0.4)
Income from continuing operations, net of tax	246.5	116.1	343.1	333.9
Income from discontinued operations, net of tax	0.1	0.1	0.3	0.3
Net income attributable to Penske Automotive Group common stockholders	246.6	$ 116.2	$ 343.4	$ 334.2
Cash dividends per share (in dollars per share)		$ 0.40	$ 0.42	$ 1.17
Retail Automotive Dealership
Revenue:
Total revenues	5,258.0	$ 5,155.4	$ 12,828.1	$ 15,442.9
Cost of sales:
Total cost of sales	4,408.3	4,407.9	10,834.0	13,159.0
Retail Commercial Truck Dealership
Revenue:
Total revenues	590.9	692.3	1,481.5	1,451.4
Cost of sales:
Total cost of sales	517.8	605.7	1,279.4	1,251.9
Commercial Vehicle Distribution and Other
Revenue:
Total revenues	122.7	119.9	322.2	393.5
Cost of sales:
Total cost of sales	$ 89.0	$ 84.3	$ 232.3	$ 287.9