Not Sold (Est: £130k - £160k)
c. 1987 Ford Sierra RS500 Cosworth Group A Competition Saloon
Bonhams • UK • 11 Dec 2025
Market Position:
Market Average
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Not Sold (Est: £130,000 - £160,000)
c. 1987 Ford Sierra RS500 Cosworth Group A Competition Saloon
UK • 11 Dec 2025
Vehicle Details
AI Listing Summary
This 1987 Ford Sierra RS500 Cosworth Group A is a competition saloon with a successful racing history, including wins at Silverstone. Recently refreshed with a new cylinder block and suspension setup, it's ready for historic motorsport events and has FIA accreditation until the end of 2027.
Condition
7
The car has been actively raced and refreshed, indicating it's in solid condition with slight wear expected from use. It has been maintained to a high standard, which suggests an overall 'Very Good' condition, with minor reconditioning possible.
/ 10
Manual
RHD
United Kingdom
ARE0185
1987
Auction
Not Sold (Est: £130k - £160k)
c. 1987 Ford Sierra RS500 Cosworth Group A Competition Saloon
Bonhams • UK • 11 Dec 2025
Market Position:
Market Average
Track live values and receive listing alerts
Description
• Rouse Sport car developed over many years • Overall winner of the Silverstone Classic in 2017 and 2021 • Winner of the 2023 Silverstone Festival in Group A • Fully refreshed since winning at Silverstone in 2023 (new block) • Current FIA accreditation until the end of 2027 • Now eligible to the new HTC2 Peter Auto Championship The sight of rival manufacturers reaping the rewards of a successful circuit racing programme prompted Ford to renew its alliance with engine builder Cosworth to create the eponymous Sierra, assembly of the minimum 5,000 units required for Group A homologation commencing in June 1986 at the company's Genk plant in Belgium.
Intended for circuit racing, the RS500 competition version was built by Aston Martin Tickford, with homologation completed in August 1987 after the 500 units required had been finished.
Most of the changes from the road version were found in the engine, which featured a thicker-walled cylinder block; a larger Garrett T04 turbocharger; a larg...
Price Analysis vs Other Sierra RS500 Cosworths
£11,250
Lowest Price (Since 2020)
£92,250
Median Price (Since 2020)
£370,500
Highest Price (Since 2020)
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Previous Sierra RS500 Cosworth Sales
MOT Information
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Auction House Headquarters
Bonhams
101 New Bond Street, London, Greater London, W1S 1SR, England
Operating from London, Bonhams is a physical auction house handling classic, historic competition, and collector cars. They conduct live auctions globally, offering vehicle consignment, appraisal, and valuation services.
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