2021 Porsche 718 Cayman 4.0 GT4

Overview

• Make: Porsche
• Model: 718 Cayman
• Trim: GT4
• Version: 4.0 GT4 PDK RWD Euro 6 2dr (414 bhp)
• Year: 2021
• Mileage: 14,500 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 4.0 litres, 414 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 242 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 14,500 miles on the clock, this 2021 Porsche 718 Cayman Gt4 has done roughly 6,500 fewer miles than a typical 2021 Porsche 718 Cayman. The dealer is asking £84,995, which is £5,326 above the AskCar estimate of £79,669. To work out the AskCar estimate, we analyse UK dealer adverts for 333 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 Startin Group, based in Leamington Spa. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £5,326 (6%) over the AskCar estimate of £79,669.

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 333 priced Porsche 718 Cayman adverts across different ages and specifications, as of 12 November 2026.

A 2021 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £72,500: the median of the 16 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2021 Porsche 718 Cayman advertised 1 day ago.

Price history

AskCar first saw this advert on 11 November 2026 at £84,995. 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 12 November 2026: valid until 18 March 2027.

It has had 3 MOTs. The latest, on 19 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 11,676 miles, which matches the advertised 14,500 miles.

Advertised mileage is about 6,500 miles lower than the median mileage of a 2021 Porsche 718 Cayman on AskCar.

Similar cars

5 other 2021 Porsche 718 Cayman GT4 4.0 petrol automatic coupes are for sale at UK dealers, from £66,499 to £82,786, as of 12 November 2026.

The 3 closest to this car in mileage:

• 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, green. Mileage: 17,328 miles. Price: £75,980, £9,015 less than this car. Dealer: The Driver's Paddock in Mansfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-787904394a45
• 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, blue. Mileage: 11,650 miles. Price: £82,786, £2,209 less than this car. Dealer: Kingsbridge in York. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-ae8e6855b3dc
• 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, grey. Mileage: 10,267 miles. Price: £66,499, £18,496 less than this car. Dealer: The Carzone Winsford in Winsford. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-094b85ce8a82