The Cadillac XLR is a luxury roadster that was marketed by Cadillac, assembled in Bowling Green, Kentucky. Intended to be Cadillac's flagship sports car, the XLR was based on the Chevrolet Corvette's Y platform. The XLR featured its own unique styling, interior, and suspension, and power-retractable aluminum hardtop, along with the Cadillac Northstar engine. The XLR ended production after the 2009 model year.
The car was based on the all-new Chevrolet Corvette (C6). Cadillac introduced the XLR at the 2003 Detroit Motor Show and began production in the 2004 model year — foreshadowed by the Evoq concept vehicle.
It was the first production Cadillac with radar Adaptive cruise control (ACC)
The XLR features as standard equipment heated and cooled leather seats, wood interior trim, remote keyless access, 18inch alloy wheels, side airbags as well as a navigation, audio, and DVD system sharing a 7-inch dashboard screen. The retractable hardtop itself is constructed of aluminum, requires 6'-10½" of vertical clearance during retraction, and is manufactured by a supplier joint venture between Mercedes-Benz and Porsche.
The engine is Cadillac's 4.6L Northstar tuned for 320hp (238.6kW; 324.4PS), mated as of the 2007 model year to a 6-speed automatic transmission.
The XLR was the second roadster offered by Cadillac in recent years. The first was the Cadillac Allanté, produced from 1987 to 1993.
The XLR was nominated for the North American Car of the Year award for 2004.The XLR replaced the Allante.