from wikipedia:

The Mercedes-Benz 300 SL (chassis code W 198) was a two-seat sports car produced by Mercedes-Benz as a gullwinged coupe (1954-1957) and roadster (1957-1963).[2] It was based on the company's highly successful 1952 racer, the W194, with merchanical direct fuel-injection, a first on a production vehicle, boosting power almost 50% on its 3-litre overhead camshaft straight-6 engine.[3] Capable of reaching a top speed of up to 263 km/h (163 mph), it was both a sports car racing champion[4] and the fastest production car of its time.[3]

The 300 SL was inspired by Max Hoffman, Mercedes-Benz's authorized United States importer at the time, who correctly perceived a large American market for such a car. The company introduced the 300 SL in February 1954 at the International Motor Sports Show in New York instead of in Europe in order to get it into U.S. buyers' hands sooner. Nearly 2,700 were sold, at triple the price of an average American sedan.

Regarded as an automobile icon, the 300 SL was voted the "sports car of the century" in 1999.[5] SL is the short form for "super-light" in German,[6] Mercedes' first use of the designation, referring to the car's racing-bred light tubular frame construction.

It claims 240 hp at flywheel.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.