Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

The following table provides information on revenues from external customers, intercompany revenues, and segment income of our reportable segments. Intercompany sales, which are eliminated in consolidation, may be based on current market prices, current fair values, or cost plus margin depending on the product type and the markets in which the products are sold.



	Three Months Ended						Three Months Ended
	March 31, 2018						March 31, 2017
	Domestic		Import		Premium Luxury		Domestic		Import		Premium Luxury
Revenues from external customers	$	1,773.7	$	1,652.6	$	1,717.8	$	1,800.8	$	1,631.7	$	1,616.6
Intercompany revenues	140.6		80.9		102.1		138.8		92.0		116.0
Segment income ⁽¹⁾	60.3		72.8		87.7		61.4		71.7		80.5

⁽¹⁾ Segment income represents income for each of our reportable segments and is defined as operating income less floorplan interest expense.

Reportable Segment Income

The following is a reconciliation of total segment income for reportable segments to our consolidated income from continuing operations before income taxes.



	Three Months Ended
	March 31,
	2018			2017
Total segment income for reportable segments	$	220.8		$	213.6
Corporate and other	(63.3		)	(28.4		)
Other interest expense	(32.3		)	(28.8		)
Interest income	0.2			0.4
Other income, net	0.8			3.0
Income from continuing operations before income taxes	$	126.2		$	159.8