A silky smooth 3.2 liter straight six cylinder engine mated to a buttery 5-speed gearbox makes this car a pleasure to driver. This 1981 BMW 633CSi is a highly collectible 5-speed example and one of just 913 built for 1981. It's in superb condition throughout and is a three owner car from new with just 71k original miles Power Windows✔ Air Conditioning✔ Sunroof/Moonroof