The Mercedes-Benz 300SL was introduced in 1954 as a two-seat, closed sports car

Sports car

A sports car is a small, usually two seat, two door automobile designed for high speed driving and maneuverability....

 with distinctive gull-wing door

Gull-wing door

Gull-wing door is an automotive industry term describing car doors that are hinged at the roof rather than the side, as pioneered by the 1952 Mercedes-Benz 300SL race car and its road-legal version introduced in 1954....

s. Later it was offered as an open roadster

Roadster

A roadster is a two-seat open car with emphasis on sporty handling and without a fixed roof or side weather protection. Strictly speaking a roadster with wind-up windows is a convertible but as true roadsters are no longer made the distinction is now irrelevant...

. It was the fastest production car of its day.

Built by Daimler-Benz

Daimler-Benz

Daimler-Benz AG was a German manufacturer of automobiles, motor vehicles, and internal combustion engines; founded in 1926. An Agreement of Mutual Interest - which was valid until year 2000 - was signed on 1 May 1924 between Karl Benz's Benz & Cie., and Daimler Motoren Gesellschaft, which had...

 AG and internally numbered W198, the fuel-injected road version was based (somewhat loosely) on the company's highly successful competition-only sports car of 1952, the somewhat less powerful carbureted Mercedes-Benz 300SL (W194).

The road model was suggested by Max Hoffman

Max Hoffman

Max Hoffman, , was an Austrian-born importer of automobiles into the United States during the 1950s. Doing business among gentlemen who knew one another well, he was known for his handshake deals that always were upheld without a written contract...

.