Nº 146 / 168 · Mercedes-Benz
Sell your Mercedes-Benz 300 SL directly.
A 1950s sports car built first as a Gullwing coupe and then a roadster, and the first production car fitted with mechanical direct fuel injection.
Begin · Mercedes-Benz
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.
Considered case by case. Whether we can buy depends on provenance, specification, history and seller expectations.
At a glance · Nº 146 / 168
- Marque
- Mercedes-Benz
- Model
- 300 SL
- Category
- Fuel-injected 1950s sports car
- Territory
- Classics & Grand Touring
- Years
- Gullwing from 1954; Roadster from 1957 until 1963.
- Engine
- Fuel-injected 3.0-litre straight-six, with mechanical direct fuel injection.
- First check
- Whether the engine specification is original, with any changes made since new.
Last reviewed 13 July 2026. Cite as: MotorSignet, The Index, Mercedes-Benz 300 SL, motorsignet.co.uk/cars-we-buy/mercedes-300sl.
The entry
The Mercedes-Benz 300 SL.
The 1954 Gullwing's upward-opening doors were a consequence of its high-sided tubular spaceframe chassis, paired with a fuel-injected 3.0-litre straight-six developed from Mercedes-Benz's racing programme.
The Roadster that followed from 1957 used conventional doors and a revised low-pivot rear suspension, remaining in production until 1963.
We review your Mercedes-Benz 300 SL 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 Mercedes-Benz 300 SL.
Every Mercedes-Benz 300 SL 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 Mercedes-Benz 300 SL, 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 Mercedes-Benz 300 SL. The full step-by-step.
Footnotes
º1Do you buy the Mercedes-Benz 300 SL?
Mercedes-Benz 300 SL entries are considered case by case, filed under Classics & Grand Touring as entry Nº 146 / 168. Availability and purchase appetite depend on provenance, specification, history and seller expectations. Submit the details or call, and a senior specialist comes back to you directly.
º2Do you need to see my Mercedes-Benz 300 SL before making an offer?
Not for the offer itself. A specialist reviews what you tell us about your Mercedes-Benz 300 SL first. Inspection follows once you accept a direct purchase offer, before anything is finalised.
º3How does selling my Mercedes-Benz 300 SL to MotorSignet work?
Send the registration or the details of your Mercedes-Benz 300 SL. 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 300 SLs that have been converted away from their original engine specification?
Tell us the exact specification and any changes made since new, it's part of an honest submission and a specialist reviews the whole picture.
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 Mercedes-Benz 300 SL.
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 · Classics & Grand Touring
Halo grand tourers and the modern classics beside them.
