The 2010 Jaguar XF is a luxury four-door sedan with refined styling and classic appeal. The base XF is no slouch thanks to a 4.2L V8 which makes 300 hp. Jaguar has produced a new larger 5.0L V8 for its Premium trim, which produces 385 hp. For the top of the line XFR, Jaguar has fitted the 5.0L with a supercharged pushing power to 510 hp. Each trim is controlled with a six-speed automatic transmission. Standard amenities are upscale and plentiful including heated seats, voice-activated navigation, Sirius satellite radio, and steering wheel mounted paddle shifters.