Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
REVENUES:
New vehicle retail sales	$ 1,521,246	$ 1,386,667	$ 4,256,146	$ 3,873,121
Used vehicle retail sales	615,924	529,828	1,743,071	1,536,031
Used vehicle wholesale sales	100,347	85,800	284,491	243,667
Parts and service sales	291,816	255,316	844,340	753,776
Finance, insurance and other, net	97,115	82,536	270,901	232,494
Total revenues	2,626,448	2,340,147	7,398,949	6,639,089
COST OF SALES:
New vehicle retail sales	1,441,016	1,313,372	4,028,164	3,656,825
Used vehicle retail sales	571,613	488,346	1,610,293	1,410,768
Used vehicle wholesale sales	101,643	87,334	281,434	242,267
Parts and service sales	137,467	121,633	397,079	358,004
Total cost of sales	2,251,739	2,010,685	6,316,970	5,667,864
GROSS PROFIT	374,709	329,462	1,081,979	971,225
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	(264,233)	(246,863)	(793,761)	(731,455)
DEPRECIATION AND AMORTIZATION EXPENSE	(10,746)	(9,093)	(31,424)	(26,390)
Asset Impairment Charges	9,373	565	11,094	1,174
INCOME FROM OPERATIONS	90,357	72,941	245,700	212,206
OTHER EXPENSE:
Floorplan interest expense	(10,452)	(10,690)	(31,695)	(30,927)
Other interest expense, net	(13,246)	(9,971)	(36,326)	(28,783)
Other expense, net	0	0	0	(789)
Gains (Losses) on Extinguishment of Debt	(22,790)	0	(46,403)	0
INCOME BEFORE INCOME TAXES	43,869	52,280	131,276	151,707
PROVISION FOR INCOME TAXES	(17,707)	(19,515)	(56,949)	(59,436)
NET INCOME	$ 26,162	$ 32,765	$ 74,327	$ 92,271
BASIC EARNINGS PER SHARE	$ 1.07	$ 1.34	$ 3.06	$ 3.83
Weighted average common shares outstanding	23,424	23,373	23,354	22,994
DILUTED EARNINGS PER SHARE	$ 1.03	$ 1.19	$ 2.82	$ 3.52
Weighted average common shares outstanding	24,432	26,342	25,363	25,153
CASH DIVIDENDS PER COMMON SHARE	$ 0.17	$ 0.17	$ 0.51	$ 0.48