The BMW M5 is a sports saloon version of the 5 Series executive car built by the Motorsport division of BMW. The first incarnation of the M5 was hand-built in 1986 on the 535i chassis with a modified M1 engine that made it the fastest production sedan at the time. Versions of the M5 have been built from subsequent generations of the 5 Series platform.
The first BMW M5, based on the E28 5 Series, made its debut at the Amsterdam Motor Show in February 1985. It was the product of demand for an automobile with the carrying capacity of a saloon (sedan), but the overall appearance of a sports car. It utilized the 535i chassis with various mechanical changes. Most notably the M88/3 engine that was derived from the engine used in the M1. The cars sold in the United States were equipped with a more emissions friendly evolution of this engine known as the S38. At its launch, the E28 M5 was the fastest production sedan in the world.
The first generation M5 was hand-built in Preussenstrasse/Munich prior to the 1986 Motorsport factory summer vacation. Thereafter, the M5 production was move...