TL;DR
A one-of-a-kind 1953 Aston Martin 2.0-Litre ‘DB1’ Spider, built by Aston Martin’s Paul Jackman, was recently auctioned. The car combines a modified BMW chassis with Aston Martin components and has a storied history linked to Le Mans.
A rare 1953 Aston Martin 2.0-Litre ‘DB1’ Spider, built by Aston Martin’s then-head of development Paul Jackman, has been sold at auction. The car’s unique construction, combining a modified BMW chassis with Aston Martin and other vintage components, underscores its significance as a bespoke sports special with racing roots.
This one-off sports car was created in the early 1950s by Paul Jackman, Aston Martin’s head of development. It features a modified BMW 320 chassis, aluminum roadster bodywork by Green & May, and a 2.0-liter inline-four engine originally used in an Aston Martin DB1 that finished 11th at the 1949 24 Hours of Le Mans.
The car was registered in 1953 as an Aston Martin ‘Sigma’ and remained with Jackman for four years before changing ownership twice and eventually reaching the United States. It underwent a cosmetic refurbishment in Germany in 1991 and was displayed in museums before being acquired by its current owner in 2011, who commissioned an engine and transmission overhaul. It was sold by a dealer in 2022 and has been shown at prominent concours events including the Amelia Island Concours d’Elegance.
Why It Matters
The vehicle’s significance lies in its unique engineering and racing heritage, blending Aston Martin design with custom modifications. It exemplifies postwar British sports car innovation and racing history, making it highly valuable to collectors and enthusiasts. Its recent auction highlights ongoing interest in historically significant, bespoke racing cars.
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Background
After David Brown’s acquisition of Aston Martin in 1947, development of a 2.0-liter sports car began, based on a tube-frame chassis and a four-cylinder engine from the prewar Atom prototype. The ‘Spa replica’ engine powered an Aston Martin DB1 to 11th at Le Mans in 1949, before being repurposed for this special. The car’s construction by Paul Jackman involved welding a steel-tube support frame onto a shortened BMW 320 chassis, then covering it with aluminum bodywork. Its racing pedigree and bespoke build make it a notable example of postwar British motorsport craftsmanship.
“This car is a unique convergence of British racing heritage and custom engineering, representing a rare piece of automotive history.”
— Auction house expert
“Restoring and maintaining this vehicle has been a labor of love, and its racing pedigree makes it a true collector’s gem.”
— Current owner
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What Remains Unclear
Details about the car’s current condition and provenance are well-documented, but its complete racing history and the full extent of modifications remain partially unverified. The exact number of similar builds by Jackman is unknown, and the precise specifications of some components are still under review.
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What’s Next
The car is now in private hands; its future movements include potential further restoration, display at classic car events, or future auction listings. Enthusiasts and collectors will watch for any new discoveries or provenance updates.
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Key Questions
What makes this Aston Martin special?
This vehicle is a one-off custom build by Aston Martin’s Paul Jackman, combining a modified BMW chassis with Aston Martin components and racing heritage from the 1940s.
How authentic is the racing history of this car?
The car’s engine was originally used in an Aston Martin DB1 that competed at Le Mans in 1949, and its build and components are well-documented, though some details remain partially unverified.
What is the significance of the ‘Spa replica’ engine?
The engine was used in a car that finished 11th at the 1949 24 Hours of Le Mans, making it a historically important powerplant in postwar racing.
What are the notable features of the car’s design?
The car features aluminum roadster bodywork, wire wheels, finned aluminum front drums, and a distinctive green paint with white roundels, reflecting its racing heritage.
What is the current value of this car?
The sale price at auction has not been publicly disclosed, but its rarity and historical significance suggest a high collector’s value.
Source: Bring a Trailer
