The M1 was BMW’s first foray into the supercar territory, and it definitely was no slouch. Featuring a “naturally-aspirated 3.5-liter 279hp twin-cam six later used in the 635CSi and M5.” Unfortunately, only 456-units were manufactured worldwide. Video after the break. Click here for first picture in gallery.

Although the turbocharged 850hp version was never a great success in Group 5 racing, it was later entered in the Procar series in support of Formula One races in the late seventies, in which a Marlboro-sponsored Niki Lauda took the title in 1979. The M1 went on to win the IMSA GTO title in 1981

[via Autoblog]