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: 10,267 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 10,267 miles on the clock, this 2021 Porsche 718 Cayman Gt4 has done roughly 9,400 fewer miles than a typical 2021 Porsche 718 Cayman. Priced at £66,499, it is advertised £14,416 below the AskCar estimate of £80,915. To work out the AskCar estimate, we analyse UK dealer adverts for 315 Porsche 718 Cayman cars across different ages and specifications. It first appeared in our advert records 9 days ago. Its advertised mileage matches the government's MOT record. The seller is The Carzone Winsford, based in Winsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Good value: £14,416 (17%) under the AskCar estimate of £80,915.

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 315 priced Porsche 718 Cayman adverts across different ages and specifications, as of 6 November 2026.

A 2021 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £70,000: the median of the 15 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2021 Porsche 718 Cayman has been on sale for at least 9 days.

Price history

AskCar first saw this advert on 28 October 2026 at £66,499. 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 6 November 2026: valid until 7 April 2027.

It failed its MOT on 7 April 2026 (front registration plate does not conform to the specified requirements; rear registration plate does not conform to the specified requirements; nearside headlamp aim too low) and passed 1 day later, on 8 April 2026.

There were no advisories at the latest test.

Mileage at that test: 7,225 miles, which matches the advertised 10,267 miles.

Advertised mileage is about 9,400 miles lower than the median mileage of a 2021 Porsche 718 Cayman on AskCar.

Similar cars

4 other 2021 Porsche 718 Cayman GT4 4.0 petrol automatic coupes are for sale at UK dealers, from £74,990 to £82,786, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, blue. Mileage: 11,650 miles. Price: £82,786, £16,287 more 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, white. Mileage: 13,447 miles. Price: £81,750, £15,251 more than this car. Dealer: Sytner Group Porsche Centre Leicester in Leicester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-8c9caa812df6
• 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, green. Mileage: 17,328 miles. Price: £75,980, £9,481 more than this car. Dealer: The Driver's Paddock in Mansfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-787904394a45