1955 Mercedes-Benz 300 SL Gullwing
The gullwing doors were not a styling decision… they were an engineering necessity.
The 300 SL’s welded tubular space-frame chassis ran its structural rails directly through the area where conventional door hinges would normally attach, leaving Mercedes-Benz’s engineers with no practical option but to hinge the doors at the roofline and let them swing upward.
That same space-frame gave the car its structural integrity while keeping weight in check (curb weight was approximately 2,860 pounds, about 1,300 kg), and it underpinned one of the most distinctive silhouettes in postwar automotive design.
The long, tapering nose and rounded tail were shaped partly by function, as the low hood line was made possible by canting the 3.0-liter single-overhead-cam inline-six approximately 50 degrees to the left within the engine bay.
Fully independent suspension completed a chassis package that was, by mid-1950s standards, unusually sophisticated for a production automobile.
Performance came from what was, at the time of introduction, the first production fuel-injected gasoline engine fitted to a road car offered for public sale.
The 2,996cc straight-six used Bosch mechanical direct fuel injection and produced 215 horsepower, enough to push the 300 SL to a top speed of up to approximately 160 to 163 mph depending on final-drive ratio (a figure that placed it well clear of most contemporary competition).
Much of the American market’s early exposure to the 300 SL came through importer Max Hoffman, whose lobbying had been instrumental in convincing Mercedes-Benz to commit the car to production in the first place.
Total Gullwing production ran from 1954 to 1957, with 1,400 coupes completed before the roadster succeeded it.
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