When staid, traditional Jaguar dropped the sleek, modern-looking XF on the unsuspecting motoring public, many a gasp was uttered. When the big cat’s V8 was enhanced with a supercharger to do battle with Germany’s mighty super-sedans, the BMW M5 and the Mercedes-Benz E63 AMG, it sucked the air out of the room entirely… and then forced it through the XFR’s Eaton blower at precisely 11.6 psi. The XFR bounds through hedgerow-lined motorways with the help of 510 horsepower and 461 ft-lbs. of torque, allowing it to crest 100 mph in less than ten seconds. Of course, the XFR never forgets that, first and foremost, it’s a luxury car in the finest British tradition, swaddled firewall-to-headliner in soft leather, fine wood, and wool carpeting. This Jaguar is a fast feline that matches refinement with enough power to make other sedans tuck tail and run.