With track-tuned suspensions, the XKR and XKR-S deliver brutal performance. This starts in the engine—a 5.0-liter supercharged V-8—that directs power through a six-speed automatic with steering-mounted paddles and rear-wheel drive. The XKR makes 510 hp, the XKR-S makes 550. In coupe or convertible form, Jaguar has reduced weight, beefed up the suspension, and opened up the exhaust. The bad news: 2015 is the last year for these hot cats. The Final Fifty edition marks the end of the line. A Jaguar, most will agree, is an animal that inspires with its awesome beauty. Part of that beauty is the sense of danger associated with the deadly predator. This trait, we believe, has been convincingly translated into automotive terms with Jaguar Cars’ latest offering: the XKR-S GT. This GT s purpose is to fight, and to win. Based on the already manly XKR-S and developed by Jaguar s Engineered to Order (ETO) division, the GT receives several chassis and aerodynamic enhancements aimed at increasing its on-track prowess. The standard car’s brakes are swapped out for carbon ceramics that benefit from automatic pre-filling and pressurizing the brake system as the driver lifts off the throttle for quick top-of-pedal response. The new discs measure 15.7 inches up front and 15 inches out back, and are clamped by six- and four-piston calipers. The entire suspension has been revised with a wider front track, increased camber, and revised bushings, the adaptive damping system is height-adjustable, and the steering has been tweaked with a quicker ratio. ETO also fits unique, 20-inch forged-aluminum wheels on Pirelli Corsa tires sized 255/35 front and 305/30 rear.