2020 Porsche 718 Cayman 4.0 GT4
Price: £83,950. Above the going rate: £6,791 (8%) over the AskCar estimate of £77,159, 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: 2020
- Mileage: 16,682 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 2 seats
- Engine: 4.0 litres, 414 bhp
- Gearbox: Manual
- Drive: Rear-wheel drive
- Colour: Red
- CO2: 251 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2020 Porsche 718 Cayman Gt4 has covered 16,682 miles, around 3,800 fewer miles than is typical for its age. The dealer is asking £83,950, which is £6,791 above the AskCar estimate of £77,159. To work out the AskCar estimate, we analyse UK dealer adverts for 315 Porsche 718 Cayman cars across different ages and specifications. We have tracked this advert for 1 day. Its advertised mileage matches the government's MOT record. The seller is Ryland Group Porsche Centre Exeter, based in Exeter. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Above the going rate: £6,791 (8%) over the AskCar estimate of £77,159.
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 2020 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £75,000: the median of the 14 for sale on AskCar, as of 6 November 2026.
Time on sale
AskCar first saw this 2020 Porsche 718 Cayman advertised 1 day ago.
Price history
AskCar first saw this advert on 5 November 2026 at £83,950. 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 29 January 2027.
It failed its MOT on 30 January 2026 (front rear fog lamp not working) and passed later the same day.
There were no advisories at the latest test.
Mileage at that test: 14,410 miles, which matches the advertised 16,682 miles.
Advertised mileage is about 3,800 miles lower than the median mileage of a 2020 Porsche 718 Cayman on AskCar.
Similar cars
7 other 2020 Porsche 718 Cayman GT4 4.0 petrol manual coupes are for sale at UK dealers, from £69,990 to £84,995, as of 6 November 2026.
The 3 closest to this car in mileage:
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe. Mileage: 17,001 miles. Price: £69,995, £13,955 less than this car. Dealer: Parkway Specialist Cars in Mansfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-bb06adb01d0b
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, black. Mileage: 20,000 miles. Price: £74,995, £8,955 less than this car. Dealer: Northway Porsche in Reading. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-7a13d0f5dc84
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, red. Mileage: 13,147 miles. Price: £74,990, £8,960 less than this car. Dealer: Per4mance Cars in Macclesfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-f31c332d8722
Browse all Porsche 718 Cayman cars for sale · 2020 Porsche 718 Cayman price guide
More like this
- Used Porsche 718 Cayman GT4 prices
- Used manual Porsche 718 Cayman for sale
- Used Porsche 718 Cayman for sale near Exeter
Photos
43 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.