2020 Porsche 718 Cayman 4.0 GT4
Price: £82,995. Fair price: £3,733 (4%) over the AskCar estimate of £79,262, our expected asking price for this car from its model, age, mileage and specification, drawing on 313 priced Porsche 718 Cayman adverts on AskCar as of 5 November 2026.
AskCar lists 323 used Porsche 718 Cayman from 207 UK dealerships, as of 5 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: 11,000 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 2 seats
- Engine: 4.0 litres, 414 bhp
- Gearbox: Manual
- Drive: Rear-wheel drive
- Colour: Blue
- CO2: 251 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 11,000 miles on the clock, this 2020 Porsche 718 Cayman Gt4 has done roughly 10,400 fewer miles than a typical 2020 Porsche 718 Cayman. The AskCar estimate for this car is £79,262. It is priced at £82,995, which is £3,733 above that estimate. The AskCar estimate draws on 313 Porsche 718 Cayman adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 9 days. It is for sale at RPM Technik in Marston. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £3,733 (4%) over the AskCar estimate of £79,262.
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 313 priced Porsche 718 Cayman adverts across different ages and specifications, as of 5 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 5 November 2026.
Time on sale
This 2020 Porsche 718 Cayman has been on sale for at least 9 days.
Price history
AskCar first saw this advert on 27 October 2026 at £82,995. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 10,400 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 5 November 2026.
The 3 closest to this car in mileage:
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, black. Mileage: 12,345 miles. Price: £84,995, £2,000 more than this car. Dealer: 911 Virgin in Iver. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-eac8905658a8
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, yellow. Mileage: 9,432 miles. Price: £84,795, £1,800 more than this car. Dealer: AutoSpec UK in Larkhall. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-9a52d605dcbb
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, red. Mileage: 13,147 miles. Price: £74,990, £8,005 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
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Photos
30 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.