For 2007, new variable-valve-timing-and-intake tweaks to Jaguar's familiar supercharged 4.2-liter V-8 yield 30 more horses and 14 more pound-feet of torque over last year's XKR.

The Jaguar XKR-S is one of the best grand tourers no one talks about. It’s fast, loud, luxurious, and jam-packed with ...

Jaguar s 4.0-liter dual-overhead-cam V-8 engine produces 290 hp in the regular XK8 coupe and convertible. Stepping up to the XKR brings a supercharged edition of that engine, which churns out 370 hp.

On honor of Jaguar's 75th anniversary, the company has worked up a limited run of XKR coupes, dubbed XKR175. Read on for more about the 2011 Jaguar XKR175 from the automotive experts at Automobile ...

Powered by a supercharged 5.0-liter V-8 engine paired to a six-speed ZF automatic, the XKR-S GT serves up 550 hp and 502 lb-ft of torque. Jaguar says this will get the racer to reach 60 mph in 3.9 ...

The XKR-S manages to balance Jaguar’s historic mantle of grace with pace. To be fair, though, we figured it’d be the chassis that reminds us that the XK dates to 2005, ...

Jaguar XKR Portfolio. Jaguar Cars is adding even more appeal to the ‘must have’ XKR with the unveiling of the all-new special edition Portfolio model. The 4.2-litre supercharged sports car will be ...

Jaguar's new XKR: Brit meets brawn Columnist Sue Callaway returns to Jaguar - for a sneak peek at a car she helped launch. By Sue Zesiger Callaway, Fortune . May 15 2007: 5:18 PM EDT ...

Jaguar cites gas mileage estimates of 15/22 mpg city/highway for the XKR and 15/21 mpg for the XFR, with zero-to-60-mph times of 4.6 and 4.7 seconds, respectively.

The supercharged Jaguar XKR-S turns in roaring, stunning performance, but Dan Neil isn't sure the world really needs a superfast version of the plush British coupe.

The XKR-S can’t go that fast, its top speed is electronically limited to 186 mph, but Jaguar contends that even the convertible can hit that mark with the roof open.

We didn't track-test this particular vehicle, but a prior 3870-pound XKR coupe sprinted to 60 in a scant 4.5 seconds; with an additional 100 or so pounds of droptop-related mechanicals, we expect ...