To Be OFFERED AT AUCTION at RM Sothebys' The London Auction event, 31 October 2026.

• The penultimate 300 SL Roadster built; one of only three delivered in 1964
• Rare and highly desirable specification; alloy engine and disc brake example
• Beautifully preserved; presents in fantastically original condition
• Retains its matching-numbers chassis, body, gearbox, kingpins, and rear axle
• Wears its factory-correct colours of White over the original Red leather interior
• Accompanied by factory hardtop roof, owner’s guides folio, and two-piece fitted luggage set
• Documented by a comprehensive history file with invoices dating back to 1967, Mercedes-Benz Classic Certificate, and copies of the factory data cards

Please note this vehicle is titled as 1964.

Please note if this vehicle is exported outside of the UK an export license will be required.

This Mercedes-Benz 300 SL Roadster holds a truly fascinating origin story, which has been extensively researched with support from the factory. Out of just 26 examples built in 1963, chassis number 198.042.10.003257 offered here was specified with White (DB 050) paintwork over a Red (DB 203) leather interior. As one of the final 209 Roadsters made, it was fitted with the coveted alloy-block engine and supplied with disc brakes. Completed on 7 February 1963, this is the penultimate 300 SL to roll off the production line, with chassis 003258 bringing the illustrious W198 lifecycle to an end the very next day.

Whereas that final car found a private buyer the same month, this Roadster landed in Austria to be sold by a Mercedes-Benz dealership in Salzburg. However, after 10 months, it had yet to tempt an owner—likely an outcome of the new and considerably less expensive W113 SL having arrived. As a result, the car returned to Stuttgart in November to be converted for the North American market. The subsequent fitment of sealed-beam headlights, instruments that read in miles, a Becker Grand Prix radio, and whitewall tyres means this car is documented with two factory data cards. Notably, the car kept its European-specification 3.64 rear axle.

Finally, accompanied by a hardtop roof, the car was collected by its first owner in the United States on 14 February 1964, more than a year after its original production date. Just three out of all 1,858 Roadsters completed were invoiced to 1964, making it among the final 300 SLs sold. Per correspondence in the history file between 300 SL historian Dr Frank Spellman and Daimler-Benz Classic, chassis 003207 was released similarly late on its way to the Shah of Iran, and at least one further car is known to have been delivered in 1965.

Concluding the protracted search for a custodian, the first known owner of this Mercedes-Benz is one Mr Robert Lindsay—as evidenced in the history file by a 22 September 1967 invoice from British Motor Cars of Spokane, Washington, when the odometer was noted with 19,050 miles. The following January, just 315 miles later, Mr Lindsay returned to BMC to have a new engine block and pistons fitted. It is believed that the replacement unit was an unstamped spare from the factory, as was common practice for the less proven and more fragile alloy 3.0-litre M198 straight-six.

Mr Lindsay retained ownership through to late 1970, before the 300 SL Roadster was bought by Mr Bill Sutherland of the Sutherland-Marlow Mercedes-Benz concern in Spokane. Prior to selling the car at the end of the following year, he had covered nigh on 10,000 miles. A final 24 November 1971 service receipt from his custodianship logged the odometer at 28,547 miles. From December, chassis 003257 was retained by fellow marque dealer Mr Phil Smart Sr of Seattle.

A vehicle valuation report dated 22 April 1987 still listed Mr Smart Sr as the owner of the 300 SL, at which time it was noted at 33,000 miles. Then, according to the Gull Wing Group International’s The Roadster Register, this car was purchased by renowned collector Mr Gordon Apker. Reportedly, come 1988, he was contacted by a Mr David Brice. At a time when Roadster values had barely crept above $100,000, the Australian investor offered a colossal $500,000. Naturally, chassis 003257 had found its new owner. In 1992, having already acquired Mr Brice’s alloy-bodied Gullwing, legendary 300 SL collector Mr Thomas Taffet of Chatsworth, California bought this matching-specification White over Red convertible. Three years on, he sold the Roadster to a German collector.

At the turn of the new millennium, Phil Smart Jr had tracked down his father’s former 300 SL and bought it back into the family in Seattle. In 2001, he tasked marque specialist Rudi Konicezk of Rudi & Company in Victoria, British Columbia with a bare-metal respray. Newly resplendent in its factory colour combination, the car was gifted back to Smart Sr.

The father-and-son duo retained possession for a further 14 years. During this time, the Mercedes-Benz made several appearances at the Kirkland Concours d’Elegance. A rosette was awarded when the Roadster claimed 2nd in its class in September 2013, as chassis 003257 marked its 50th anniversary. Subsequently acquired by a prominent collector in California, who kept the car for five years, the 300 SL Roadster was imported to the United Kingdom in 2020 by its consigning owner.

In 2024, the Roadster was sent to 300 SL specialist Martin Cushway of Sudbury, Suffolk. A comprehensive service, including the fitment of a new timing chain and refurbishment of the rear axle, was completed as part of work exceeding £20,000. At this time, Cushway inspected the car and recorded it as having retained its original chassis, body, gearbox, rear axle, plus left and right kingpins. Meanwhile, the unstamped replacement engine (dated 7 October 1965 on the block) sports a tag bearing the car’s original engine number (198.982.10.000218), and Cushway states that the camshaft and cylinder head appear to be original.

Accompanied by a Mercedes-Benz Classic Certificate issued in April 2007, this fantastic and significant 300 SL Roadster is further complemented by its factory hardtop roof, owner’s guides in their folio, and a two-piece fitted luggage set for the boot. Also supplied with the car is the history file, comprising of three folders, as well as a Gull Wing Group technical folio, workshop manual, a tool kit, jack, plus spare wheel.

Regarded by many as the original supercar, the W198 is extremely desirable in any form. The Roadster model, introduced in 1957, then improved upon the breed. Of the convertibles, it is the later examples to feature an alloy-block engine and disc brakes that are most coveted among collectors. Chassis 003257 offers all those immensely appealing traits in addition to being an extremely rare example of a beautifully preserved 300 SL. More than that, it is this car’s standing as the penultimate Roadster built and its incredibly late delivery date that must surely rank it as one of the most exceptional 300 SLs on the planet.
To view this car and others currently consigned to this auction, please visit the RM website at rmsothebys.com/auctions/lf26/.