The engine was derived from the forthcoming 200 Turbo. Audi’s unique inline-5-cylinder engine displaced 2144 cc and boosted by a KKK turbocharger. The result was 200 horsepower at 5500 rpm and 210 lbft of torque at 3500 rpm. This allowed Autocar magazine to record 7.3 seconds from 0 to 60 mph and 135 mph in 1981, which was remarkable then. By the standard of the 1980s turbocharged engines, Audi’s turbocharged five-pot was particularly impressive for its characterful sound, smoothness and relatively less turbo lag. But turbo lag still existed. It needed around 3000 rpm to get into sweet zone. That’s not much of a problem then, but as time went by, newly emerging rivals like Porsche 944 raised the game with torquey and responsive naturally aspirated engines. In 1987, Audi bored out the five-pot to 2226 cc along with higher compression and water-cooled turbocharger. Maximum output remained unchanged, but there was more torque available at low rpm. In 1989, the last evolution added a twin-cam 20-valve head to boost power to 220 hp. Peak torque now raised to 228 lbft and it took just 1950 rpm to realize. By then the turbo lag became negligible.