Four-wheel drive 1987. Audi also introduced a permanently all-wheel-driven road-going car, the Audi Quattro, in 1980. Audi's chassis engineer, Jörg Bensinger, had noticed in winter tests in Scandinavia that a vehicle used by the German Army, the Volkswagen Iltis, could beat any high-performance Audi. He proposed developing a four-wheel-drive car, that would also be used for rallying to improve Audi's conservative image. The Audi Quattro system became a feature on production cars. In 1987, Toyota also developed a car built for competition in rally campaigns. A limited number of road-going FIA Homologation Special Vehicle Celica GT-Four (known as Toyota Celica All-Trac Turbo
Four-wheel drive and Ford, became the best-known four-wheel-drive vehicle in the world during the war. The American Dodge WC series and Chevrolet G506 4x4 variants were also produced by the hundred-thousands, as well as the Canadian Military Pattern trucks, of which 4x4s were by far the most prevalent of their various driveline configurations. All totaled, North America built ca. million 4x4 driven vehicles during the war, One deciding factor had to do with availability of certain critical components, like transfer cases and especially constant-velocity joints, not used much on commercial vehicles, but all-wheel drive vehicles all needed these; plus additionally, they would