With a 7:40 lap time around the Nurburgring, Jaguar’s quickest XK ever produced is fitted with all sorts of new kit that helps the Jag lap the ‘ring in around the same time as the Mercedes SLR McLaren, or the Ford GT. The XKR-S GT was built to be “the ultimate GT car,” and as a result it is 11-15 seconds faster around the Nurburgring than the already quick Jaguar XKR-S.
Perhaps the most noticeable change to the Jaguar is the addition of large carbon fiber aero pieces implemented to improve down force and handling. A carbon fiber front slitter is paired with two carbon fiber side fins that work to improve aerodynamics. An enormous carbon fiber rear wing produces ample down force to keep the Jaguar XKR-S GT planted to the road as it reaches its top speed of an electronically limited 186 mph.
A 5.0-liter supercharged V8 produces 550 horsepower, and 502 lb-ft of torque. This allows the rear wheel drive XKR-S GT to accelerate to 60 mph in 3.9 seconds.
Jaguar set out to produce the most track capable XK ever built, as a result, engineers have re-designed the car’s suspension system in order to improve turn-in, and overall responsiveness. The front track of the Jag is 52 millimeters wider than the already formidable XKR-S. New track oriented bushings, suspension arms, and wheel bearings have been used for improved road feel and handling. Jaguar fitted the steering rack from the Jaguar F-Type to also improve handling.
In order to improve handling and breaking, Jaguar, in conjunction with Pirelli reworked Pirelli’s Corsa performance tire. Jaguar also fitted carbon ceramic breaks as standard, which utilize 6 piston break calipers in the front. In order to improve break feel, the Jaguar’s “pre-fill system” anticipates when the driver is likely to engage the breaks and pre-pressurizes the break system for consistent pedal travel and for improved break feel.
Styling wise, the Jaguar XKR-S GT receives a large black vinyl decal on the hood, 20” gloss black alloy wheels, an interior composed mainly of suede, and hood louvers that both aid engine cooling, and look pretty darn cool.