The Ultimate Mercedes-Benz 300 SL Alloy Gullwing Is Up For Sale

Mercedes-Benz 300 SL Alloy Gullwing
1955 Mercedes-Benz 300 SL Alloy Gullwing

This incredible 1955 Mercedes-Benz 300 SL Alloy Gullwing sports car is considered by many to be the best in the world and it’s up for sale in a matter of weeks…

The majestic 300 SL Gullwing Coupe needs little introduction and is regarded by many as the sports car of the century if not the most iconic of all the post-war sports car designs with the Leichtmetallausführung, or Light Metal Version, produced in aluminum, considered the ultimate production version of Mercedes-Benz’s most celebrated automotive icon.

Purpose-built for competition, the Alloy Gullwing boasts a special race-bred configuration that differs in many ways from the standard steel-bodied production car and resulted in an overall weight reduction of 209 pounds, thus making the Alloy Gullwing especially competitive against its toughest rivals.

Mercedes-Benz 300 SL Alloy Gullwing

The Purist Gullwing Ever

High-performance NSL engines tuned to deliver in excess of 215 horsepower. Rudge center-mount wheels came standard, as did special vented front brake drums. Finally, the suspension was revised with exclusive springs and shocks, which provided better high-speed handling. Mercedes-Benz commenced production in 1955, and factory records show just 29 examples were made available to private customers.

Mercedes-Benz 300 SL Alloy Gullwing

This particular car is one of very few to retain its numbers-matching 3.0-liter NSL engine and original alloy body and is the 13th of the 24 Alloy Gullwings produced in 1955. Chassis number 5500332 was ordered by official Mercedes-Benz agent Joseph F. Weckerlé of Casablanca, Morocco, and was fitted with all the requisite lightweight equipment.

Mercedes-Benz 300 SL Alloy Gullwing

Dressed in Silver Gray Metallic (DB 180) over a blue vinyl/blue gabardine fabric interior (L1). Additional factory specifications include a full complement of desirable features such as the high-speed 3.42 rear axle with uprated metric 270-kph speedometer, Becker radio, and standard glass windows (as opposed to Plexiglas). It was the only Alloy example commissioned by Weckerlé, and as such, the sole specimen delivered new to Africa.


After three decades of storied ownership by one of America’s foremost marque enthusiasts, this Alloy Gullwing was acquired by the consignor in 2014. Cheek’s longtime stewardship is, indeed, par for the course for these special cars and a much-confirmed sentiment of this incredible model’s supreme usability and exhilarating performance.

As mentioned previously, chassis number 5500332 retains its original lightweight body and numbers-matching 3.0-liter NSL engine and currently exhibits significant attention to factory-correct features throughout, befitting its provenance and near-exclusive maintenance by Paul Russell’s famous workshop since 1975.

Mercedes-Benz 300 SL Alloy Gullwing

The stunning 1955 Mercedes-Benz 300 SL Alloy Gullwing will be offered for sale at RM Sotheby’s Arizona Sale, January 27 2022 with an estimate of $9,000,000.

Images courtesy of RM Sotheby’s

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