CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue:
Total revenues	$ 7,447.8	$ 7,339.0
Cost of sales:
Total cost of sales	6,202.6	6,086.7
Gross profit	1,245.2	1,252.3
Selling, general, and administrative expenses	879.8	844.9
Depreciation	37.8	33.9
Operating income	327.6	373.5
Floor plan interest expense	(44.8)	(27.9)
Other interest expense	(21.3)	(20.8)
Equity in earnings of affiliates	33.3	82.1
Income before income taxes	294.8	406.9
Income taxes	(78.6)	(107.3)
Net income	216.2	299.6
Less: Income attributable to non-controlling interests	1.0	1.3
Net income attributable to Penske Automotive Group common stockholders	$ 215.2	$ 298.3
Basic earnings per share attributable to Penske Automotive Group common stockholders:
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.21	$ 4.31
Shares used in determining basic earnings per share (in shares)	67,061,968	69,201,232
Diluted earnings per share attributable to Penske Automotive Group common stockholders:
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$ 3.21	$ 4.31
Shares used in determining diluted earnings per share (in shares)	67,077,401	69,218,861
Amounts attributable to Penske Automotive Group common stockholders:
Net income	$ 216.2	$ 299.6
Less: Income attributable to non-controlling interests	1.0	1.3
Net income attributable to Penske Automotive Group common stockholders	$ 215.2	$ 298.3
Cash dividends per share (in dollars per share)	$ 0.87	$ 0.61
Retail automotive dealership
Revenue:
Total revenues	$ 6,478.0	$ 6,299.8
Cost of sales:
Total cost of sales	5,420.8	5,237.2
Retail commercial truck dealership
Revenue:
Total revenues	791.8	895.6
Cost of sales:
Total cost of sales	647.0	748.6
Commercial vehicle distribution and other
Revenue:
Total revenues	178.0	143.6
Cost of sales:
Total cost of sales	$ 134.8	$ 100.9