Now reports are surfacing that Jaguar is preparing the latter, tipped to be called the Jaguar XKR-R. A couple of weeks ago, we brought you spy shots of a Jaguar XK test mule undergoing testing.

The second model in Jaguar's ultra-high performance R-S range, the XFR-S joins its XKR-S sibling in the exclusive 300km/h ...

The XKR-R was built from the ground up using new, modified, and custom-built parts. Not a single component-from the revised shape of the front bumper to the quad-outlet exhaust-escaped Jaguar's ...

Jaguar’s high-performance models are usually denoted with an R at the end of their name, but the British marque did one better with a one-off, hotter XKR-R concept of its last-generation XKR.

Jaguar is rumored to be developing an even more potent model than the XKR and, as these latest spy images reveal, the car could be on sale sooner than you think. Targeting high-end sports cars ...

The XKR-R rides lower than a stock XK8 by 30 millimeters, and the purposeful look of the car is further accentuated by the fitting of Jaguar's own 20-inch BBS-sourced R-Performance wheels.

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.

Measured by track numbers, it’s not likely to match a BMW M6. What defines the 2007 Jaguar XKR—what will make it more appealing than an M6 to some enthusiasts—is its pleasing balance of virtues.

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.

Jaguar's track-oriented 2014 XKR-S GT is making its debut at the New York auto show, and the automaker has announced pricing, as well. The limited-edition XKR-S GT coupe will start at $174,895 ...

If you still find yourself coming up a few seconds short per lap in your Jaguar XKR-S, the British automaker has introduced the XKR-S GT – a cat specifically tuned for the racing circuit – at ...

The R uses the 542bhp, 502lb ft tune of 5-litre supercharged V8 engine that sits in the XFR-S, XKR-S and XJR models, and it’s enough to hustle the hard-top F to an electronically limited 186mph ...