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: 25,596 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 4.0 litres, 414 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Yellow
• CO2: 242 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 25,596 miles, this 2021 Porsche 718 Cayman Gt4 has covered about 4,600 more miles than other 2021 Porsche 718 Cayman cars. The dealer is asking £74,990, which is £50 below the AskCar estimate of £75,040. To work out the AskCar estimate, we analyse UK dealer adverts for 318 Porsche 718 Cayman cars across different ages and specifications. We have tracked this advert today. The government's MOT record matches its advertised mileage. You can find this car at Performance 28 Cars in Chester LE Street. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £50 (under 1%) under the AskCar estimate of £75,040.

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 318 priced Porsche 718 Cayman adverts across different ages and specifications, as of 10 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 10 November 2026.

Time on sale

AskCar first saw this 2021 Porsche 718 Cayman advertised today.

Price history

AskCar first saw this advert on 10 November 2026 at £74,990. 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 10 November 2026: valid until 29 June 2027.

It failed its MOT on 30 June 2026 (front registration plate does not conform to the specified requirements; rear registration plate does not conform to the specified requirements) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 24,560 miles, which matches the advertised 25,596 miles.

Advertised mileage is about 4,600 miles higher 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 £66,499 to £82,786, as of 10 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, £990 more 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: 39,136 miles. Price: £74,990, the same price as this car. Dealer: Group 1 Automotive Porsche Centre Portsmouth in Portsmouth. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-c90cecf3ba3d
• 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, blue. Mileage: 11,650 miles. Price: £82,786, £7,796 more than this car. Dealer: Kingsbridge in York. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-ae8e6855b3dc