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: 13,447 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 4.0 litres, 414 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 242 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 13,447 miles, this 2021 Porsche 718 Cayman Gt4 has covered about 6,300 fewer miles than other 2021 Porsche 718 Cayman cars. Priced at £81,750, it is advertised £2,028 above the AskCar estimate of £79,722. To work out the AskCar estimate, we analyse UK dealer adverts for 315 Porsche 718 Cayman cars across different ages and specifications. Since we first spotted the advert 34 days ago, the asking price has dropped by £2,000. Its advertised mileage matches the government's MOT record. The seller is Sytner Group Porsche Centre Leicester, based in Leicester. 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

Fair price: £2,028 (2%) over the AskCar estimate of £79,722.

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 34 days.

Price history

AskCar first saw this advert on 3 October 2026 at £83,750. Its asking price is now £81,750, £2,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 3 October 2026: £83,750
• 22 October 2026: £82,500
• 4 November 2026: £81,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 29 June 2027.

It has had 3 MOTs. The latest, on 4 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 12,876 miles, which matches the advertised 13,447 miles.

Advertised mileage is about 6,300 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 £66,499 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, £1,036 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, grey. Mileage: 10,267 miles. Price: £66,499, £15,251 less than this car. Dealer: The Carzone Winsford in Winsford. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-46010963c7d0
• 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, green. Mileage: 17,328 miles. Price: £75,980, £5,770 less than this car. Dealer: The Driver's Paddock in Mansfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-787904394a45