Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
REVENUES:
New vehicle retail sales	$ 1,268,836	$ 1,110,235
Used vehicle retail sales	549,897	471,399
Used vehicle wholesale sales	89,173	74,551
Parts and service sales	269,317	237,510
Finance, insurance and other, net	83,640	70,137
Total revenues	2,260,863	1,963,832
COST OF SALES:
New vehicle retail sales	1,201,930	1,047,599
Used vehicle retail sales	507,096	431,123
Used vehicle wholesale sales	86,061	72,129
Parts and service sales	127,654	112,492
Total cost of sales	1,922,741	1,663,343
GROSS PROFIT	338,122	300,489
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES	(257,558)	(233,433)
DEPRECIATION AND AMORTIZATION EXPENSE	(9,925)	(8,413)
INCOME FROM OPERATIONS	70,639	58,643
OTHER EXPENSE:
Floorplan interest expense	(10,913)	(9,364)
Other interest expense, net	(10,513)	(9,242)
Other expense, net	0	(789)
INCOME BEFORE INCOME TAXES	49,213	39,248
PROVISION FOR INCOME TAXES	(17,910)	(17,130)
NET INCOME	$ 31,303	$ 22,118
BASIC EARNINGS PER SHARE	$ 1.29	$ 0.95
Weighted average common shares outstanding	23,339	22,282
DILUTED EARNINGS PER SHARE	$ 1.19	$ 0.88
Weighted average common shares outstanding	25,428	24,113
CASH DIVIDENDS PER COMMON SHARE	$ 0.17	$ 0.15