The Jensen FF was a series of sports cars introduced for the 1967 model year. The FF shared much of its appearance with the Jensen interceptor, but was not only longer, but very different mechancially, with the most important difference being the FF's four wheel drive system. This all wheel drive system was developed by Ferguson Research, leading to the FF's name (Ferguson Formula). Jensen offered the FF as a two door, four seat coupe powered by a 6.3L V8 engine. Due to problems in converting the cars to LHD, the FF was not available in North America. Production of the Jensen FF lasted until 1971, with only 320 examples built.