The M1 is BMW's first mid-engine sports car. Built in 1979 and 1980 this was the first BMW super car capable of rivaling the strongest Ferrari and Porsche. Group 5 is the highest category of GT racing of the day. the BMW M1 began racing in the Procar series instead. David Cowart and Kenper Miller won the IMSA GTO category in 1981. When BMW had sold enough cars to comply with Group 5 homologation requirements, the vehicle was no longer competitive for that group. Production of the BMW M1 ceased in 1981 after 455 examples were created, with 56 created for racing.
In 1979, 79 examples were created with 38 being race-prepared, and the remaining 41 intended for road-use. In 1980 and 1981, 188 vehicles were constructed per year. 18 were constructed for racing. Less than ten cars went IMSA racing, but they left their mark. The BMW M1, designed by Giugiaro and powered by a Paul Rosche designed 3.5-liter, twin-cam six-cylinder engine mounted mid-ship. Double track control arms on the front and rear axles, magnesium wheel mounts, aluminium wheel hubs with central bolt, Bilstein dampers with bolted spring plates, anti-roll bars front and rear, exchangeable and adjustable, ATE brake system, swing callipers and vented discs front and rear, twin master brake cylinders, brake forces adjustable while driving, rims 11.0 x 16 at the front, 12.5 x 16 at the rear, tyres 10.0/23.5 x 16 at the front, 12.5/25.0 x 16 at the rear, rack-and-pinion steering with direct transmission ratio.