The 1990 model, which really became available in 1989, underwent a major upgrade and became "green". The engine was replaced with the twin-cam 20 valve unit and to counteract the detrimental effect of the twin catalysts, the power output was raised to 220bhp. The main improvement was the new engine management system being able to supply a "flat" torque curve over virtually the entire rev range, no more "turbo lag".

Some features only previously available as extras were fitted as standard, heated front seats, Audi Sport steering wheel, etc. The price was also increased to a staggering circa £34,000, rather expensive for 1990!