2021 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: 2021
• Mileage: 20,924 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 4.0 litres, 414 bhp
• Gearbox: Manual
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 251 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Porsche 718 Cayman Gt4 has covered 20,924 miles. Its asking price of £83,750 is £5,532 above the AskCar estimate of £78,218. The AskCar estimate uses 315 UK dealer adverts for the Porsche 718 Cayman, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 22 days ago, and its asking price has since fallen by £1,250. 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: £5,532 (7%) over the AskCar estimate of £78,218.

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 22 days.

Price history

AskCar first saw this advert on 15 October 2026 at £85,000. Its asking price is now £83,750, £1,250 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 15 October 2026: £85,000
• 27 October 2026: £83,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 11 April 2027.

It has had 3 MOTs. The latest, on 26 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 18,135 miles, which matches the advertised 20,924 miles.

Advertised mileage is about 1,200 miles higher than the median mileage of a 2021 Porsche 718 Cayman on AskCar.

Similar cars

1 other 2021 Porsche 718 Cayman GT4 4.0 petrol manual coupe is for sale at UK dealers, as of 6 November 2026.

The closest to this car in mileage:

• 2021 Porsche 718 Cayman GT4, 4.0 petrol coupe, grey. Mileage: 10,670 miles. Price: £79,995, £3,755 less than this car. Dealer: D P Vehicles in Ashford. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2021-a896a1a463b4