2020 Porsche 718 Cayman 4.0 GT4
Price: £69,990. Fair price: £3,117 (4%) under the AskCar estimate of £73,107, our expected asking price for this car from its model, age, mileage and specification, drawing on 314 priced Porsche 718 Cayman adverts on AskCar as of 7 November 2026.
AskCar lists 326 used Porsche 718 Cayman from 212 UK dealerships, as of 7 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: 28,800 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 2 seats
- Engine: 4.0 litres, 414 bhp
- Gearbox: Manual
- Drive: Rear-wheel drive
- Colour: Silver
- CO2: 251 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2020 Porsche 718 Cayman Gt4 has covered 28,800 miles, around 7,400 more miles than is typical for its age. The dealer is asking £69,990, which is £3,117 below the AskCar estimate of £73,107. To work out the AskCar estimate, we analyse UK dealer adverts for 314 Porsche 718 Cayman cars across different ages and specifications. This car was first seen in our listings data 6 days ago. The government's MOT record matches its advertised mileage. It is advertised by Johnny Autos in Leicester. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £3,117 (4%) under the AskCar estimate of £73,107.
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 314 priced Porsche 718 Cayman adverts across different ages and specifications, as of 7 November 2026.
A 2020 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £75,000: the median of the 13 for sale on AskCar, as of 7 November 2026.
Time on sale
AskCar first saw this 2020 Porsche 718 Cayman advertised 6 days ago.
Price history
AskCar first saw this advert on 1 November 2026 at £69,990. 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 7 November 2026: valid until 17 September 2027.
It has had one MOT, on 18 September 2026, and passed.
There were no advisories at the latest test.
Mileage at that test: 28,759 miles, which matches the advertised 28,800 miles.
Advertised mileage is about 7,400 miles higher than the median mileage of a 2020 Porsche 718 Cayman on AskCar.
Similar cars
6 other 2020 Porsche 718 Cayman GT4 4.0 petrol manual coupes are for sale at UK dealers, from £69,995 to £84,995, as of 7 November 2026.
The 3 closest to this car in mileage:
- 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, black. Mileage: 20,000 miles. Price: £74,995, £5,005 more 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. Mileage: 17,001 miles. Price: £69,995, the same price as 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, £13,960 more than this car. Dealer: Ryland Group Porsche Centre Exeter in Exeter. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-ff249c85e725
Browse all Porsche 718 Cayman cars for sale · 2020 Porsche 718 Cayman price guide
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Photos
36 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.