Whether you are hauling a full load of kids or transporting your kayak to the lake, the Jeep Grand Cherokee offers a great blend of utility and comfort. The Jeep Grand Cherokee is powered by a 3.6L 6-cylinder engine and has rugged four-wheel drive. The Jeep Grand Cherokee's unibody chassis sets it apart from other SUVs that are made with body-on-frame construction, the original automobile manufacturing process. Unibody construction enhances the vehicle's structural integrity and strength, and the other systems on the chassis are also mounted on this frame. A unibody chassis is lighter than a body-on-frame vehicle, enhancing fuel efficiency and overall performance. The unibody chassis better absorbs energy in a collision, as well as being more resistant to torsional flexing of the whole vehicle while cornering. This quality improves its road grip and handling, as well as an improved crumple zone for occupant protection. The reliable sellers on eBay offer new and used Jeep Grand Cherokees with a variety of trim options, such as a power glass moonroof, navigation system, automatic climate control, and park assist.