After the success of BMW M products like "BMW 3.0 CSL" in racing venues and the growing market for high performance sports cars, M introduced cars for sale to the public. The first official M-badged car for sale to the public was the M1, revealed at the Paris Motor Show in 1978. The M1, however, was more of a racecar in domestic trim than an everyday driver. The direction of the M cars changed with the 1979 release of the M535i, which was a high performance version of BMW's popular 5 Series mid-size sedan.