Nº 091 / 168 · Porsche
Sell your Porsche 718 Cayman GT4 RS directly.
The first RS treatment of the Cayman, carrying the 911 GT3's naturally-aspirated flat-six in a mid-engined shell.
Begin · Porsche
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.
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At a glance · Nº 091 / 168
- Marque
- Porsche
- Model
- 718 Cayman GT4 RS
- Category
- Mid-engined GT department special
- Territory
- Porsche GT & Track
- Years
- One series, delivered from 2022.
- Engine
- 4.0-litre naturally-aspirated flat-six revving to 9,000rpm, from the 992 GT3; PDK only.
- First check
- A diligent service history: pads, discs, fluids and tyres between track events, and who did the work.
Last reviewed 27 October 2026. Cite as: MotorSignet, The Index, Porsche 718 Cayman GT4 RS, motorsignet.co.uk/cars-we-buy/porsche-718-cayman-gt4-rs.
The entry
The Porsche 718 Cayman GT4 RS.
The GT4 RS pairs the 992 GT3's 4.0-litre naturally-aspirated flat-six, revving to 9,000rpm, with the mid-engined 718 platform.
Process air intakes sit where the rear side windows would be, and the swan-neck wing and underbody aero come from the GT department's racing practice.
We review your Porsche 718 Cayman GT4 RS 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 Porsche 718 Cayman GT4 RS.
Every Porsche 718 Cayman GT4 RS 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 Porsche 718 Cayman GT4 RS, 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 specialist's notes
What we check on a Porsche 718 Cayman GT4 RS.
The GT4 RS is a Cayman with the 992 GT3's engine, built for the circuit, so the review centres on how it has been used and what it was ordered with.
- Generation
- One series, delivered from 2022, PDK only, with the 4.0-litre naturally aspirated flat-six revving to 9,000rpm. Process-air intakes replace the rear quarter windows, the bonnet and front wings are carbon, and the fixed swan-neck wing and lower ride height are standard.
- Specification
- The Weissach package (carbon-weave bonnet, intakes and wing, titanium tailpipes and roll cage, Race-Tex dash) and the optional 20-inch forged magnesium wheels are the headline lines. PCCB carbon-ceramic brakes were optional over the iron discs, the Clubsport package was a no-cost option, and the standard tyre was the Michelin Pilot Sport Cup 2, with the Cup 2 R available through dealers.
- Service
- Most GT4 RSs see track use, so a diligent service history is the thing we ask for first: pads, discs, fluids and tyres between events, and whether the work was done by Porsche or a specialist.
- History
- Porsche's Production Specification by VIN confirms the package and the brake specification. The Porsche Design GT4 RS chronograph was sold separately and only to owners of the car, so if it comes with the sale it is a nice extra, not a condition.
- Condition
- Ceramic disc wear where PCCB is fitted, Cup 2 tyre age and condition, the carbon bonnet and wings for stone damage, the swan-neck wing and adjustable front diffuser for contact, and the bucket-seat bolsters.
The private route
- ISend the details
- IIReviewed by a specialist
- IIIA direct offer
- IVInspection, payment & collection
The same four stages for every Porsche 718 Cayman GT4 RS. The full step-by-step.
Footnotes
º1Do you buy the Porsche 718 Cayman GT4 RS?
Yes. The Porsche 718 Cayman GT4 RS is on the index of cars we buy directly, filed under Porsche GT & Track as entry Nº 091 / 168. Send the registration or the car's details and a specialist reviews it personally.
º2Do you need to see my Porsche 718 Cayman GT4 RS before making an offer?
Not for the offer itself. A specialist reviews what you tell us about your Porsche 718 Cayman GT4 RS first. Inspection follows once you accept a direct purchase offer, before anything is finalised.
º3How does selling my Porsche 718 Cayman GT4 RS to MotorSignet work?
Send the registration or the details of your Porsche 718 Cayman GT4 RS. 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.
º4Does regular track use count against a GT4 RS?
No. These are cars built for it. Describe the use and any supporting preparation honestly and the review takes it as part of the car's story.
º5Do you buy a Porsche 718 Cayman GT4 RS without the Weissach package?
Yes. The Weissach package is one line on the build record, not a condition of our interest. Every GT4 RS is reviewed on its own specification and history.
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 Porsche 718 Cayman GT4 RS.
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 · Porsche GT & Track
GT3, RS and the air-cooled lineage.
