The Jeep Wagoneer was an early sport utility vehicle (SUV), prouced under varying marques from 1963 to 1991. It was noteworthy for being in production for more than 28 years with only minor mechanical changes. An overhead cam engine, along with independent front suspension (both later discontinued), supplemented with features unheard of in any other 4WD vehicle (including power steering and automatic transmission), made it revolutionary at the time. A solid front axle was available as well. Compared with offerings from International Harvester and Land Rover — which were producing utilitarian work-oriented vehicles that were quite spartan and truck-like on the inside — the Wagoneer was the first true luxury 4x4. The Wagoneer is based on the Jeep SJ platform. It debuted seven years (24 years in the United States) before the Land Rover Range Rover. It was also one of the last few vehicles sold in the United States that still used a carburetor, well after most other vehicles had switched to fuel injection. Only Isuzu with its base-model pickup truck would hold out longer, selling its last carbureted vehicle in 1993.