The Jeep Grand Cherokee SRT8 4WD is an all-wheel drive performance SUV manufactured by Fiat Chrysler Automobiles under the Jeep brand. It is powered by a 6.4L V8 engine, producing 475 horsepower and 470 lb-ft of torque. The SRT8 features an upgraded suspension, larger brakes, and a lowered ride height. It also includes an active exhaust system and standard performance-oriented features such as launch control, Brembo brakes, and selectable driving modes.