GT6 | Audi Sport quattro S1 Rally Car 1986 Top Speed | Eiger Nordwand K Trail | PS3

Audi introduced full-time 4WD technology into the World Rally Championships (WRC) in 1981 and showed incredible performance right from the outset. In 1982, they won a double victory, taking both the manufacturers' and drivers' titles, followed that up with a driver title victory in 1983, and a double title again in 1984. Year after year, Audi's rally car continued to improve, and in the autumn of 1983 they sold 200 of the 2133 cc 5-cylinder turbo-powered Sports Quattros for Group B homologation, and then that version entered racing from 1984. In 1985, at Tour De Corse, an improved version of the sports Quattro made its debut: the Sports Quattro S1, also called the Sports Quattro E2 in some countries. The engine that powered it was basically unchanged, but it incorporated some improvements, such as the misfiring (Anti-lag) system, and an increase in final output to 591 HP. One other crucial improvement was the transmission, a 6-speed semi-automatic with a clutch sensor in the shifter. Later that year, the car was also given an aerodynamic body with front spoilers and large front wheel arches to match, plus rear wheel arches that incorporated air inlets, and then to top off the racy look, a rear wing. By now, the car had matured into the ultimate rallying Quattro. In the same period, Audi modified a WRC-spec Sports Quattro S1 to hill climb specifications, and took part in the Pikes Peak International Hill Climb. The results were spectacular, with champion drivers Michèle Mouton and Walter Röhrl winning and resetting the track record in both 1985 and 1987, respectively.