The GT’s supercharged 5.0-liter V-8 is rated at 550 horsepower at 6500 rpm, and it produces 502 lb-ft of torque from 2500 rpm—identical levels of output as the mill found in the standard XKR-S. Jaguar promises a 0-to-60 sprint in 3.9 seconds, a conservative claim that we believe can easily be beaten. Top speed, somewhat
Whichever version of the 2014 Q50 you get includes a V-6 under the hood. In so-badged 3.7 versions will be an updated VQ 3.7-liter V-6 with 328 horsepower and 269 pound-feet of torque. It sings along with less of the coarse character of the G37, while revving just as freely and eagerly through the gears.