CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenue:
Total revenues	$ 7,604.5	$ 7,447.8
Cost of sales:
Total cost of sales	6,335.5	6,202.6
Gross profit	1,269.0	1,245.2
Selling, general, and administrative expenses	913.6	879.8
Depreciation	39.9	37.8
Operating income	315.5	327.6
Floor plan interest expense	(41.5)	(44.8)
Other interest expense	(22.5)	(21.3)
Gain on sale of dealership	52.3	0.0
Equity in earnings of affiliates	33.3	33.3
Income before income taxes	337.1	294.8
Income taxes	(92.1)	(78.6)
Net income	245.0	216.2
Less: Income attributable to non-controlling interests	0.7	1.0
Net income attributable to Penske Automotive Group common stockholders	$ 244.3	$ 215.2
Basic earnings per share attributable to Penske Automotive Group common stockholders:
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.66	$ 3.21
Shares used in determining basic earnings per share (in shares)	66,772,412	67,061,968
Diluted earnings per share attributable to Penske Automotive Group common stockholders:
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.66	$ 3.21
Shares used in determining diluted earnings per share (in shares)	66,789,776	67,077,401
Amounts attributable to Penske Automotive Group common stockholders:
Net income	$ 245.0	$ 216.2
Less: Income attributable to non-controlling interests	0.7	1.0
Net income attributable to Penske Automotive Group common stockholders	$ 244.3	$ 215.2
Cash dividends per share (in dollars per share)	$ 1.22	$ 0.87
Retail automotive dealership
Revenue:
Total revenues	$ 6,569.3	$ 6,478.0
Cost of sales:
Total cost of sales	5,485.5	5,420.8
Depreciation	34.6	32.9
Floor plan interest expense	(35.5)	(38.8)
Other interest expense	(18.0)	(21.2)
Equity in earnings of affiliates	0.3	1.0
Income before income taxes	252.2	198.4
Retail commercial truck dealership
Revenue:
Total revenues	823.7	791.8
Cost of sales:
Total cost of sales	682.7	647.0
Depreciation	3.9	3.6
Floor plan interest expense	(3.7)	(4.0)
Other interest expense	0.0	0.0
Equity in earnings of affiliates	0.0	0.0
Income before income taxes	45.1	50.5
Commercial vehicle distribution and other
Revenue:
Total revenues	211.5	178.0
Cost of sales:
Total cost of sales	$ 167.3	$ 134.8