2021 Porsche 718 Cayman 4.0 GT4
Price: £79,995. Fair price: £2,060 (2%) under the AskCar estimate of £82,055, our expected asking price for this car from its model, age, mileage and specification, drawing on 315 priced Porsche 718 Cayman adverts on AskCar as of 6 November 2026.
AskCar lists 326 used Porsche 718 Cayman from 212 UK dealerships, as of 6 November 2026.
Overview
- Make: Porsche
- Model: 718 Cayman
- Trim: GT4
- Version: 4.0 GT4 Manual RWD Euro 6 (s/s) 2dr (414 bhp)
- Year: 2021
- Mileage: 10,670 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 2 seats
- Engine: 4.0 litres, 414 bhp
- Gearbox: Manual
- Drive: Rear-wheel drive
- Colour: Grey
- CO2: 251 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Porsche 718 Cayman Gt4 is advertised with 10,670 miles, approximately 9,000 below the typical mileage for its age. Its asking price of £79,995 is £2,060 below the AskCar estimate of £82,055. The AskCar estimate uses 315 UK dealer adverts for the Porsche 718 Cayman, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 14 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is D P Vehicles, based in Ashford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Fair price: £2,060 (2%) under the AskCar estimate of £82,055.
The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.
It draws on 315 priced Porsche 718 Cayman adverts across different ages and specifications, as of 6 November 2026.
A 2021 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £70,000: the median of the 15 for sale on AskCar, as of 6 November 2026.
Time on sale
This 2021 Porsche 718 Cayman has been on sale for at least 14 days.
Price history
AskCar first saw this advert on 23 October 2026 at £79,995. Its asking price has not changed.
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 5 June 2027.
It has had 4 MOTs. The latest, on 27 May 2026, passed.
Advisories at the latest test: tyre slightly damaged/cracking or perishing all four tyres slightly perishing.
Mileage at that test: 9,647 miles, which matches the advertised 10,670 miles.
Advertised mileage is about 9,000 miles lower than the median mileage of a 2021 Porsche 718 Cayman on AskCar.
Similar cars
1 other 2021 Porsche 718 Cayman GT4 4.0 petrol manual coupe is for sale at UK dealers, as of 6 November 2026.
The closest to this car in mileage:
- 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, blue. Mileage: 20,924 miles. Price: £83,750, £3,755 more than this car. Dealer: Sytner Group Porsche Centre Leicester in Leicester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-d010fe87f98a
Browse all Porsche 718 Cayman cars for sale · 2021 Porsche 718 Cayman price guide
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Photos
32 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.