Nº 057 / 168 · Ford
Sell your Ford Sierra RS500 Cosworth directly.
A homologation special built to support Ford's Group A touring car racing, using a turbocharged four-cylinder engine and a prominent rear wing.
Begin · Ford
Request a direct purchase offer.
Enter the registration. We review it personally and aim to reply within 24 hours, with a direct purchase offer usually within 48 hours.
No reg to hand, or an import? Send details instead.
At a glance · Nº 057 / 168
- Marque
- Ford
- Model
- Sierra RS500 Cosworth
- Category
- Homologation touring car special
- Territory
- Homologation Icons
- Engine
- Turbocharged four-cylinder, with additional turbo cooling over the Sierra RS Cosworth.
- First check
- The exact specification and any changes, including engine or ECU modifications.
Last reviewed 5 July 2026. Cite as: MotorSignet, The Index, Ford Sierra RS500 Cosworth, motorsignet.co.uk/cars-we-buy/ford-sierra-rs500-cosworth.
The entry
The Ford Sierra RS500 Cosworth.
The RS500 was built to extend homologation of the Sierra RS Cosworth for Group A touring car racing, with additional turbo cooling and bodywork over the standard car.
It used a turbocharged four-cylinder engine and became closely associated with Ford's touring car programme of the era.
We review your Ford Sierra RS500 Cosworth on the engineering behind it, its own history and its condition, not against a generic pricing model.
What we look for
What we weigh in a Ford Sierra RS500 Cosworth.
Every Ford Sierra RS500 Cosworth is reviewed on the same four things as any other entry in the Index. Gaps are normal; tell us what you have. Neither a modification nor outstanding finance rules a car out on its own.
- 01
Documented history: service records and provenance for a Ford Sierra RS500 Cosworth, however complete.
- 02
Originality and modifications: what has changed, and why.
- 03
Condition, honestly described, including anything outstanding.
- 04
Paperwork and finance still to sort.
The private route
- ISend the details
- IIReviewed by a specialist
- IIIA direct offer
- IVInspection, payment & collection
The same four stages for every Ford Sierra RS500 Cosworth. The full step-by-step.
Footnotes
º1Do you buy the Ford Sierra RS500 Cosworth?
Yes. The Ford Sierra RS500 Cosworth is on the index of cars we buy directly, filed under Homologation Icons as entry Nº 057 / 168. Send the registration or the car's details and a specialist reviews it personally.
º2Do you need to see my Ford Sierra RS500 Cosworth before making an offer?
Not for the offer itself. A specialist reviews what you tell us about your Ford Sierra RS500 Cosworth first. Inspection follows once you accept a direct purchase offer, before anything is finalised.
º3How does selling my Ford Sierra RS500 Cosworth to MotorSignet work?
Send the registration or the details of your Ford Sierra RS500 Cosworth. A specialist reviews it personally and, if it fits what we buy, makes a direct purchase offer. If you accept, inspection and collection are arranged. Paid in full by bank transfer before your vehicle leaves. We aim to complete within 7 days where checks and paperwork are ready.
º4Do you buy RS500s with non-original engine or ECU modifications?
Yes, tell us the exact specification and any changes as part of your submission so the review reflects the actual car.
This page describes a type of car we buy and source directly, not a specific example currently held or for sale.
Begin · In confidence
Begin with your Ford Sierra RS500 Cosworth.
Start with the registration. We review it personally and aim to reply within 24 hours, with a direct purchase offer usually within 48 hours.
Same territory · Homologation Icons
The cars built so the racing versions could exist.
