Exhibit 12

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Three Months Ended March 31,						Year Ended December 31,
	2009			2008			2008			2007			2006			2005			2004
Income from continuing operations before undistributed earnings of equity method investments, amortization of capitalized interest and taxes	$	25.9			50.1			(516.0	)		183.4			191.8			186.7			176.5
Less undistributed earnings of equity method investments		(0.7	)		(1.4	)		(16.5	)		(4.1	)		(8.2	)		(4.3	)		(5.8	)
Plus distributed earnings of equity method investments		20.7			0.8			3.5			6.2			0.3			—			1.3
Plus amortization of capitalized interest	$	0.2			0.2			0.8			0.6			0.5			0.3			0.2
	$	46.1			49.7			(528.2	)		186.1			184.4			182.7			172.2
Plus:
Fixed charges:
Other interest expense (includes amortization of deferred financing costs)	$	14.5			11.9			54.4			55.5			48.4			48.6			42.4
Debt discount amortization	$	3.6			3.5			14.0			13.0			11.1			—			—
Floor plan interest expense	$	9.5			17.0			64.5			73.4			58.5			45.5			40.8
Capitalized interest	$	0.6			1.4			4.8			5.5			7.1			4.0			2.9
Interest factor in rental expense	$	13.1			13.2			52.8			49.7			43.2			34.8			27.4
Total fixed charges	$	41.3			47.0			190.5			197.1			168.3			132.9			113.5
Less:
Capitalized interest	$	0.6			1.4			4.8			5.5			7.1			4.0			2.9
Earnings	$	86.8			95.3			(342.5	)		377.7			345.6			311.6			282.8
Ratio of earnings to fixed charges		2.1			2.0			(1.8	)		1.9			2.1			2.3			2.5