that would determine the necessary engineering work and assess the car's financial viability was put in place during mid-1989, working from the TWR workshops. Mike Moreton headed the team, joining TWR to run the XJ220 project. Moreton came from Ford Motorsport where he led the team responsible for the Ford Sierra RS500 Cosworth, and was a project manager for the Ford RS200 Group B rally car program. Richard Owen was appointed chief designer and the remainder of the team was made up of Jaguar and TWR staff, including Pete Dodd, the only member of the group of twelve responsible for the XJ220 concept. The exterior and interior designers who had worked on the XJ220 prototype, Keith Helfet and Nick Hull, rejoined the project when it became clear that more design work would be needed. Development The development team looked at the two principal competitors, the Ferrari F40 and the Porsche 959. These were powered by compact, lightweight engines; both the Ferrari and the Porsche used forced induction to obtain high power outputs from small-displacement engines. Ferrari used a twin-turbocharged V8 engine that was rated at whilst Porsche used a twin-turbocharged flat-six engine rated at , resulting in cars that were significantly lighter and smaller than the XJ220 concept: the Ferrari was lighter by and shorter, whilst the Porsche was lighter and shorter. The Porsche's specifications were closer to the Jaguar's, with all-wheel drive and a luxurious interior. By comparison, the rear-wheel drive Ferrari had a very basic interior, with no carpets, door handles or a stereo. Engine The production version of the XJ220 used a twin-turbocharged V6 engine, which was given the designation Jaguar/TWR JV6. This engine, which replaced the Jaguar V12 engine featured in the concept car, was a heavily redesigned and significantly altered version of the Austin Rover V64V V6 engine. The decision to change the engine was based on engine weight and dimensions, as well as environmental emission considerations. Use of the shorter V6 engine design allowed the wheelbase of the XJ220 to be shortened and its weight to be reduced; the V12 engine was definitively ruled out when it was determined it would have difficulty at simultaneously meeting emissions legislations. TWR purchased the rights to the V64V engine from Austin Rover in 1989 and developed a completely new turbocharged engine, codenamed JV6, under the auspices of Allan Scott, with proportions roughly similar to the V64V, and