CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue:
Total revenues	$ 3,651.1	$ 5,755.8	$ 8,660.2	$ 11,320.2
Cost of sales:
Total cost of sales	3,098.2	4,888.0	7,330.6	9,600.9
Gross profit	552.9	867.8	1,329.6	1,719.3
Selling, general and administrative expenses	453.6	668.9	1,095.4	1,335.3
Depreciation	27.9	27.1	56.4	53.5
Operating income	71.4	171.8	177.8	330.5
Floor plan interest expense	(11.7)	(21.0)	(29.4)	(42.8)
Other interest expense	(28.4)	(30.4)	(60.1)	(60.3)
Equity in earnings of affiliates	29.9	39.5	44.4	66.3
Income from continuing operations before income taxes	61.2	159.9	132.7	293.7
Income taxes	(16.5)	(41.5)	(36.6)	(76.2)
Income from continuing operations	44.7	118.4	96.1	217.5
Income from discontinued operations, net of tax	0.1	0.1	0.2	0.2
Net income	44.8	118.5	96.3	217.7
Less: (Loss) Income attributable to non-controlling interests	(0.3)	0.7	(0.5)	(0.3)
Net income attributable to Penske Automotive Group common stockholders	$ 45.1	$ 117.8	$ 96.8	$ 218.0
Basic earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 0.56	$ 1.42	$ 1.20	$ 2.61
Discontinued operations (in dollars per share)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 0.56	$ 1.42	$ 1.20	$ 2.61
Shares used in determining basic earnings per share (in shares)	80,421,478	82,872,330	80,731,889	83,625,142
Diluted earnings per share attributable to Penske Automotive Group common stockholders:
Continuing operations (in dollars per share)	$ 0.56	$ 1.42	$ 1.20	$ 2.60
Discontinued operations (in dollars per share)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 0.56	$ 1.42	$ 1.20	$ 2.61
Shares used in determining diluted earnings per share (in shares)	80,461,478	82,912,330	80,771,889	83,665,142
Amounts attributable to Penske Automotive Group common stockholders:
Income from continuing operations	$ 44.7	$ 118.4	$ 96.1	$ 217.5
Less: (Loss) Income attributable to non-controlling interests	(0.3)	0.7	(0.5)	(0.3)
Income from continuing operations, net of tax	45.0	117.7	96.6	217.8
Income from discontinued operations, net of tax	0.1	0.1	0.2	0.2
Net income attributable to Penske Automotive Group common stockholders	45.1	$ 117.8	$ 96.8	$ 218.0
Cash dividends per share (in dollars per share)		$ 0.39	$ 0.42	$ 0.77
Retail Automotive Dealership
Revenue:
Total revenues	3,153.5	$ 5,196.3	$ 7,570.1	$ 10,287.5
Cost of sales:
Total cost of sales	2,687.2	4,421.4	6,425.7	8,751.1
Retail Commercial Truck Dealership
Revenue:
Total revenues	399.2	426.8	890.6	759.1
Cost of sales:
Total cost of sales	339.0	368.3	761.6	646.2
Commercial Vehicle Distribution and Other
Revenue:
Total revenues	98.4	132.7	199.5	273.6
Cost of sales:
Total cost of sales	$ 72.0	$ 98.3	$ 143.3	$ 203.6