8-9 September 2013

Mercedes Collection

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Lot 164

1957 Mercedes-Benz 300 SLS Racing

  • Chassis no. 198.042.7500557
  • Engine no. 198.980.7500555

Sold for £593,600

250 bhp, 2,996 cc overhead-cam inline six-cylinder engine, aluminium block four-speed manual transmission, independent front suspension with upper and lower A-arms and coil springs, independent rear suspension with swing axles and coil springs, and front disc and rear drum hydraulic brakes. Wheelbase: 2,400 mm

Whilst the Mercedes-Benz 300 SL is often thought of as the ultimate road car of the 1950s, it is important to remember that it was, in fact, a car born and bred directly on the race track. It was Mercedes-Benz’s New York importer, Max Hoffman, who conceived the idea for a road version of the potent W194 300 SL, which would cater towards wealthy, performance-minded enthusiasts. Hoffman successfully convinced the top executives at Mercedes-Benz that a car such as this would sell well in the United States, and the rest is history. As radical and ground breaking as the 300 SL and the Roadster that followed were, the 300 SLS that was campaigned by American racing driver Paul O’Shea took things one step further.

According to Sports Illustrated magazine in July 1955, O’Shea “[had] always tinkered with cars and built the first one he ever drove by compounding a makeshift motor out of an old washing machine”, and he began racing in 1950. It was clear that O’Shea was a natural, as he chalked up his first victory, in a one-hour endurance race at Vero Beach, Florida, in 1951. He would go on to enter in the 12-hour race that same day, where he emerged with a 2nd place finish.

Fast forward to 1955, and Mercedes-Benz had removed itself from all motorsport activities following the horrific crash at Le Mans that year, leaving only a handful of private enthusiasts racing automobiles adorned with the three-pointed star. At the time, Paul O’Shea had already been racing 300 SLs and was doing well under the banner of the O’Shea-Tilp Racing Team. In 1957, O’Shea decided to convert a pair of brand-new 1957 300 SL Roadsters into all-out race cars that could compete in the SCCA’s D Production class. O’Shea saw massive success in that first year with the new cars, and he would go on to win the class title in 1957, demonstrating once again the supreme engineering of the 300 SL platform and the effectiveness of O’Shea’s new 300 SLS. With its successful résumé and the fame its driver accrued behind the wheel, the 300 SLS and Paul O’Shea had written themselves into the SCCA history books, and they would never be forgotten by those who witnessed his exploits. O’Shea would go on to race until 1962, and he would eventually brush shoulders as a co-driver to automotive greats such as Phil Hill and Zora Arkus Duntov.

To create an accurate recreation of the 300 SLS that O’Shea drove to victory so many times would not be an easy task. Just like O’Shea’s SLS, a 1957 300 SL Roadster was sourced to function as the basis for the project, and then the work began.

The Mercedes-Benz specialists at Kienle Automobiltechnik, in Heimerdingen, Germany, were commissioned to do the conversion, and they spent no less than 2,000 man hours on the job. Engineers carefully shed nearly 250 kilograms from the weight of the original roadster by installing a plethora of custom-built aluminium parts, including an engine block, a radiator, a 120-litre fuel tank, an oil cooler, and lightweight seats, and removing the bumpers, windows, and heater altogether. A small racing windscreen was installed as well, saving even more weight and giving the SLS an even racier look whilst also helping to improve aerodynamics. Finally, a single chrome roll bar was installed behind the driver’s seat. Overall power output was increased by 35 horsepower, giving the car even more incredible performance credentials.

The SLS is in absolutely beautiful condition, sporting silver paint over a dark blue leather interior with matching blue-grey plaid seat inserts. Whilst it is purpose-built for racing, the interior is truly a nice place to be. The beautiful blue dashboard will be familiar to anyone who has spent time in an “ordinary” example of a 300 SL Roadster, and the interior is beautifully trimmed. The gorgeous wood-rimmed steering wheel is inspired by the wheel from the 300 SLR, and it gives the interior a much racier feeling. Few signs of use are apparent, but this car still presents as being fresh from a restoration. A recent mechanical inspection found the drivetrain and its components to be in exemplary condition, with only minor signs of wear. This 300 SLS is, without a doubt, ready to return to the track and the open road.

The SLS offered here today presents a unique opportunity. As a lightened and more powerful version of the most iconic Mercedes-Benz vehicle of all time, this automobile will not only provide for endless fun on the track, but it will also be equally ready to tear up country roads and turn heads whilst doing so. This car is perfect for the racing enthusiast who isn’t afraid of taking an automobile such as this out onto the track to find its limits, just as Paul O’Shea did over 50 years ago.

Alexander Weaver

+1 864 313 6844
California, United States

Alexander Weaver joined RM Sotheby’s in 2011 as a Car Specialist after graduating from Furman University in South Carolina. Born... read more

Augustin Sabatié-Garat

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United Kingdom

Augustin Sabatié-Garat joined RM Europe in 2012 as a Car Specialist after more than a decade in the collector car hobby. Gradua... read more

Barney Ruprecht

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Ontario, Canada

Barney’s interest in classic cars began at an early age after being introduced to his father’s all-original 1965 Porsche 911. Barney l... read more

David Swig

+1 415 302 2247
California, United States

David Swig joined RM Sotheby’s West Coast division as a Car Specialist in May 2015. David is a life-long automobile enthusi... read more

Don Rose

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United States

Don joined RM in 2006 after several years of professionally trading sports and classic cars, and after earning a reputation as a noted... read more

Donnie Gould

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Florida, United States

Donnie Gould joined the RM team in 2002 as a partner and Car Specialist after more than two decades in the vintage automobile auction ... read more

Gord Duff

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Ontario, Canada

Gord Duff began his journey with RM Sotheby’s in 1998. Since then, he has gained an intimate knowledge of a variety of marques a... read more

Jake Auerbach

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California, United States

Jake Auerbach got his start in the automotive industry at an early age, spending his summers during high school working at a classic c... read more

Kurt Forry

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California, United States

Having worked for Bonhams’ Automobilia department for over 10 years, Kurt Forry joined RM Sotheby’s with more than a decad... read more

Matt Malamut

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California, United States

A long-time car enthusiast and Southern California native, Matt studied Automotive Technology at San Diego Miramar College and complet... read more

Michael Squire

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United Kingdom

Michael Squire joined RM Sotheby’s European Division in the summer of 2016. He comes to RM with a prestigious racing background ... read more

Mike Fairbairn

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Ontario, Canada

As one of the three founding partners of RM Sotheby’s, Mike has a long-standing interest in the classic car industry. Graduating... read more

Oliver Camelin

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United Kingdom

With an extensive background in exotic sports car history and sales, a particular passion for American curves, and fluency in three la... read more

Paul Darvill

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United Kingdom

Paul Darvill joined the RM Sotheby’s European team at the beginning of 2015. Paul holds a degree in French and Politics from the... read more

Pete Fisher

+1 519 784 9300
Ontario, Canada

Pete Fisher was first introduced to antique cars in high school, working for Classic Coachworks in his hometown of Blenheim, Ontario. ... read more

Shelby Myers

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California, United States

Shelby Myers grew up with the classic car industry infused into every aspect of his life. He had the unique opportunity to watch the R... read more

Tonnie Van der Velden

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United Kingdom

Tonnie Van der Velden joined RM Sotheby’s European division in September 2015 as a Car Specialist. A lifelong enthusiast, Tonnie... read more