The BMW M5 is a high-performance variant of the BMW 5 Series marketed under the BMW M sub-brand. It is considered an iconic vehicle in the sports sedan category. The M5 has always been produced in the sedan (saloon) body style, but in some countries the M5 has also been available as a wagon (estate) from 1992 to 1995, from 2006 to 2010, and since 2024.

The BMW E28 is the second generation of BMW 5 Series executive cars, which was produced from 1981 to 1988 and replaced the E12 5 Series. Pre-series production began in April 1981 and the car was introduced in the autumn that year.