The 503 is one of the most overlooked of the classic BMW models. Introduced at the same show as the 507, the 503 was not as elegant and was more expensive. 

Only 412 503's were ever built. 

The BMW 507 had its debut at the 1955 Frankfurt Motor Show. The beautiful light alloy bodywork was attached to a strong frame, and the engine was the then new aluminum 160 hp V8. 

Introduced in 1955 and nicknamed the "rolling egg", the Isetta was designed for cheap, short distance transportation. 

The Isetta was designed by Renzo Rivolta of Iso Rivolta and licensed to BMW. It was powered by a 1-cylinder air-cooled BMW motorcycle engine. 

Introduced in 1955, the BMW 600 was intended as an enlarged Isetta three-wheeler with more power and a more conventional four-wheel configuration. 

The 600 had the 582 cc twin engine from the R67 motorcycle. Top speed was 64 mph.

Big and sturdy machines, the 500 series cars were BMW's mainstay from 1951 up until 1964. They were nicknamed Baroque Angels because their flowing lines reminded people of the carved wooden figures of the Baroque period.

The 501 was BMW's first post-war automobile. In 1957, BMW produced the 501 in 6 and 8-cylinder models.

Introduced in 1954, the 502 for 1957 featured 2.6 and 3.2 liter V-8 engines. In 1957 a 3.2S model with a more powerful engine was added to the lineup. 

Production ended for the 505 in 1957.