Based on the 1986 E30 3-Series, the first M3 was introduced with a 2.3 L S14 engine, derived from the M10 inline-4 block and the valve train and head architecture from BMWs M1 and later M6 inline-6 cylinder. One of the main reasons for production of the road car was to homologate the M3 for Group A Touring Car racing, as an answer to the "2.3-16V"-model of the Mercedes-Benz W201 which was introduced in 1983. A notable characteristic of the E30 M3 is its racing pedigree, campaigned by BMW as well as other racing teams including Prodrive and Schnitzer Motorsport.