Featuring distinctive aesthetics, seating for four, and a high-performance inline-six engine with motorsport roots, the E24 M6 and M635CSi present an exclusive blend of grand touring and sportiness. The M635CSi available in the European market boasts the M1-derived M88/3 engine, while the North American and Japanese M6 models come equipped with the S38 potent engine. These vehicles stand out as popular and captivating instances of early M-series automobiles.