The Jeep Grand Cherokee is a range of mid-size SUV's produced by the American manufacturer Jeep. While some other SUVs were manufactured with body-on-frame construction, the Jeep Grand Cherokee has always used a unibody chassis. The Grand Cherokee SRT8, which started production on July 16, 2011 is equipped with a 470 hp (350 kW; 477 PS) 6.4 L Hemi V8 engine.