The 1957 Mercedes-Benz 300 SL Roadster represents a rare blend of elegance and engineering. This US-spec example, crossing the block in Phoenix, carries numbers-matching components and a fresh restoration. Collectors will note its Silver Metallic finish paired with red leather and a matching soft-top.
Design and Exterior
The Roadster’s Silver Metallic paint highlights its flowing lines. Red leather and a red fabric top add contrast. Shaved trim and careful detailing emphasize the timeless coachwork. Parking placards confirm its exhibition at Monaco Grand Prix events, underscoring its storied past.
Interior Refinement
The cabin features red leather upholstery with period-correct detailing. Touches of modern restoration enhance usability while preserving authenticity. The interior reflects Mercedes-Benz’s balance of luxury and performance, offering comfort without sacrificing driving engagement.
Engineering and Restoration
RM Auto Restoration rebuilt the numbers-matching 3.0-liter straight-six engine in 2025. A new clutch was fitted to the four-speed transmission. Over $100,000 in invoices document the work, including engine bay cleaning and exterior touchups. The chassis inspection confirmed excellent preserved condition.
Performance and Specifications
The 3.0-liter straight-six with mechanical fuel injection delivers strong power. Paired with a synchronized four-speed gearbox, it provides smooth acceleration. The improved rear axle design enhances handling, while the Roadster’s balance of speed and refinement remains evident even in modern traffic.
Historical Context
The 300 SL Roadster replaced the Gullwing coupe in 1957. Enthusiasts welcomed its improved dynamics and convertible appeal. Stars and collectors embraced it for both glamour and capability. Today, it remains one of the most celebrated open sportscars of its era.
Ownership and Provenance
This Roadster was originally specified in Fire Engine Red over Crème leather. Later refinished in Silver Metallic, it passed through Malibu and Beverly Hills collections. In 2021, it joined a Bay Area collection before undergoing restoration by RM Auto Restoration.
Crossing the Block
Estimated at $1,100,000–$1,400,000 USD, this Roadster will attract significant attention. Its numbers-matching components, restoration quality, and provenance make it a compelling candidate for collectors. The inclusion of tool roll, luggage, and factory data card adds further appeal.
Summary
The 1957 Mercedes-Benz 300 SL Roadster combines timeless styling, numbers-matching authenticity, and fresh restoration. With its rebuilt 3.0-liter engine, synchronized gearbox, and elegant Silver over red presentation, it stands as a refined example of Mercedes-Benz’s mid-century engineering. Crossing the block in Phoenix, it offers collectors a rare opportunity.
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Source: rmsothebys.com
