2020 Porsche 718 Cayman 4.0 GT4

Overview

• Make: Porsche
• Model: 718 Cayman
• Trim: GT4
• Version: 4.0 GT4 Manual RWD Euro 6 (s/s) 2dr (414 bhp)
• Year: 2020
• Mileage: 21,161 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 4.0 litres, 414 bhp
• Gearbox: Manual
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 251 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Porsche 718 Cayman Gt4 has covered 21,161 miles. Priced at £74,995, it is advertised £1,045 below the AskCar estimate of £76,040. To work out the AskCar estimate, we analyse UK dealer adverts for 309 Porsche 718 Cayman cars across different ages and specifications. This car was first seen in our listings data today. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at JCT600 Porsche Centre Newcastle in Newcastle Upon Tyne. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,045 (1%) under the AskCar estimate of £76,040.

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 309 priced Porsche 718 Cayman adverts across different ages and specifications, as of 9 November 2026.

A 2020 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £75,000: the median of the 15 for sale on AskCar, as of 9 November 2026.

Time on sale

AskCar first saw this 2020 Porsche 718 Cayman advertised today.

Price history

AskCar first saw this advert on 9 November 2026 at £74,995. 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 9 November 2026: valid until 15 June 2027.

It has had 4 MOTs. The latest, on 20 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 17,183 miles, which matches the advertised 21,161 miles.

Advertised mileage is about 200 miles higher than the median mileage of a 2020 Porsche 718 Cayman on AskCar.

Similar cars

8 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 9 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, £5,000 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, £8,955 more than this car. Dealer: Ryland Group Porsche Centre Exeter in Exeter. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-ff249c85e725
• 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, silver. Mileage: 28,800 miles. Price: £69,990, £5,005 less than this car. Dealer: Johnny Autos in Leicester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-b977c223f746

• The nearest: 2020 Porsche 718 Cayman GT4, 4.0 petrol coupe, yellow, 109 miles from this car. Mileage: 9,432 miles. Price: £84,795, £9,800 more than this car. Dealer: AutoSpec UK in Larkhall. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2020-9a52d605dcbb