2020 Porsche 718 Cayman 4.0 GT4
Price: £73,995. Fair price: £477 (under 1%) under the AskCar estimate of £74,472, our expected asking price for this car from its model, age, mileage and specification, drawing on 345 priced Porsche 718 Cayman adverts on AskCar as of 14 November 2026.
AskCar lists 356 used Porsche 718 Cayman from 218 UK dealerships, as of 14 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: 26,000 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
This 2020 Porsche 718 Cayman Gt4 has covered 26,000 miles, around 9,000 more miles than is typical for its age. The dealer is asking £73,995, which is £477 below the AskCar estimate of £74,472. To work out the AskCar estimate, we analyse UK dealer adverts for 345 Porsche 718 Cayman cars across different ages and specifications. It first appeared in our advert records today. The seller is RPM Technik, based in Marston. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 14 November 2026.
RPM Technik is rated 4.8 out of 5 on Google.
Price
Fair price: £477 (under 1%) under the AskCar estimate of £74,472.
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 345 priced Porsche 718 Cayman adverts across different ages and specifications, as of 14 November 2026.
A 2020 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £78,000: the median of the 14 for sale on AskCar, as of 14 November 2026.
Time on sale
AskCar first saw this 2020 Porsche 718 Cayman advertised today.
Price history
AskCar first saw this advert on 14 November 2026 at £73,995. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 9,000 miles higher than the median mileage of a 2020 Porsche 718 Cayman on AskCar.
Similar cars
9 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 14 November 2026.
The 3 closest to this car in mileage:
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, silver. Mileage: 28,800 miles. Price: £69,990, £4,005 less than this car. Dealer: Johnny Autos in Leicester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-b977c223f746
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe. Mileage: 17,001 miles. Price: £69,995, £4,000 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, red. Mileage: 16,682 miles. Price: £83,950, £9,955 more than this car. Dealer: Ryland Group Porsche Centre Exeter in Exeter. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-ff249c85e725
- The nearest: 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, blue, under a mile from this car. Mileage: 11,000 miles. Price: £82,995, £9,000 more than this car. Dealer: RPM Technik in Tring. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-5fe22bd5a1d4
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 Aylesbury
As of 14 November 2026, AskCar lists 600,711 cars and vans from 12,770 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.