Until an extreme version of the F-Type comes out, this is the track happy Jag you'll want.
Compared to the new Jaguar F-Type, the XK looks kind of bland. Not that it's a bad car, but it's an old car, especially in terms of design. A redesign is currently in the works, but before that's all said and done the UK automaker has gone kind of bonkers with the existing XK. The 2014 XKR-S GT is limited to just 25 examples and is currently the baddest cat in Jag's lineup. Powered by a 5.0-liter supercharged V8 with 550 horsepower and 461 lb-ft of torque, this is the Jag that's designed to do battle with the likes of the Porsche 911 Turbo.
It's an absolute track beast and a far cry from the standard XK. Hell, it'd even be tough to pick between this and the new F-Type coupe. It's basically the track-ready Jaguar enthusiasts have been waiting for.