The BMW 5 Series is on its seventh generation of automobiles and has been in production since 1972. This series features a range of executive cars with body styles including the 4-door sedan, 5-door wagon, and 5-door fastback. The 5 Series is BMW’s second top-selling model just under the 3 Series. Throughout the generations, the BMW 5 series has featured four-cylinder, six-cylinder, V8, and V10 engines.