The Cadillac XLR is a two passenger roadster manufactured and marketed by Cadillac from 2003 to 2009 across a single generation — and noted for its power retractable hardtop, Bulgari designed interior instruments, head-up display, adaptive suspension, rear-mounted transmission and near 50/50 front-to-rear weight distribution. As Cadillac's flagship model, the XLR was introduced at the 2003 North American International Auto Show and began production for the 2004 model year — foreshadowed by the 1999 Evoq concept.

The Cadillac XLR, although sometimes thought of as a badge-engineered variant of the C6 Chevrolet Corvette, also manufactured at GM's Bowling Green assembly, actually made its debut a year ahead of it. While the two share the GM Y platform, hydroformedperimeter frame, and composite bodywork construction technology, each has distinct engines, bodies, interiors, and suspension settings, with the XLR also featuring a unique power retractable hardtop. 

The XLR was the first production Cadillac with radar-based adaptive cruise control(ACC)[6] and the first to offer both heated and cooled seats.

The XLR was nominated for the North American Car of the Year award for 2004.