With the debut of the 2004 Cadillac XLR, the premium roadster market was no longer a bastion of the imports. Riding on a light weight platform shared with the 2005 Chevrolet Corvette, the XLR wore stealth fighter styling. A 4.6-liter/320-horsepower Northstar V8 with variable valve timing drove the rear wheels via a rear mounted five-speed automatic transmission. A showcase for Cadillac technology, the XLR sported a retractable hardtop, adaptive cruise control, StabiliTrak, and Magnetic Ride Control. Other standards included heated and cooled seats, keyless start, a navigation system, and Bulgari-designed gauges.