In September 1985, the 924S model was proclaimed (for the 1986 model year) with a new 2.5 liter 150 horse power engine derived from the 944, and 944 suspension, brakes, drive train and electrical system. It featured a 5-speed manual or 3-speed automatic transmission, disc brakes all round, telephone dial alloy wheels and different cabin decor. The automatic had power-assisted steering as standard The US engine 150 horse power c145 lbs.-ft. 8.3 seconds 134 mph. Zero to 100 mph took about 20 seconds, but with a normal slim 924 body. This 924S contained Bosch DME engine controlling instead of the K-Jetronic fuel injection. It also retained the original 924's minimal, VW derived interior. It had air-conditioning, electric mirrors, power steering and windows, and optional pieces like a limited slip differential, automatic transmission and electric sunroof.