2023 Porsche 718 Cayman 4.0 GT4 RS

Overview

• Make: Porsche
• Model: 718 Cayman
• Trim: GT4 RS
• Version: 4.0 GT4 RS PDK RWD Euro 6 2dr (493 bhp)
• Year: 2023
• Mileage: 4,800 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 4.0 litres, 493 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 299 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 4,800 miles, this 2023 Porsche 718 Cayman Gt4 RS has covered about 8,300 fewer miles than other 2023 Porsche 718 Cayman cars. The dealer is asking £129,995, which is £2,793 below the AskCar estimate of £132,788. To work out the AskCar estimate, we analyse UK dealer adverts for 309 Porsche 718 Cayman cars across different ages and specifications. The asking price is now £2,000 lower than when we first recorded the advert 87 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Riviera Automotive, based in Cleckheaton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,793 (2%) under the AskCar estimate of £132,788.

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 309 priced Porsche 718 Cayman adverts across different ages and specifications, as of 8 November 2026.

A 2023 Porsche 718 Cayman with the 4.0 petrol engine is typically advertised at £85,500: the median of the 21 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2023 Porsche 718 Cayman has been on sale for at least 87 days.

Price history

AskCar first saw this advert on 13 August 2026 at £131,995. Its asking price is now £129,995, £2,000 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 13 August 2026: £131,995
• 27 August 2026: £131,595
• 17 October 2026: £129,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 5 February 2027.

It has had one MOT, on 6 February 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 4,084 miles, which matches the advertised 4,800 miles.

Advertised mileage is about 8,300 miles lower than the median mileage of a 2023 Porsche 718 Cayman on AskCar.

Similar cars

6 other 2023 Porsche 718 Cayman GT4 RS 4.0 petrol automatic coupes are for sale at UK dealers, from £121,995 to £144,995, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2023 Porsche 718 Cayman GT4 RS, 4.0 petrol coupe, grey. Mileage: 5,500 miles. Price: £138,499, £8,504 more than this car. Dealer: Oakmoore Car Company in Birmingham. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-9c45d4b908d4
• 2023 Porsche 718 Cayman GT4 RS, 4.0 petrol coupe, grey. Mileage: 1,120 miles. Price: £144,995, £15,000 more than this car. Dealer: Automotive Addiction in Telford. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-b030cdc3963a
• 2023 Porsche 718 Cayman GT4 RS, 4.0 petrol coupe, grey. Mileage: 11,500 miles. Price: £126,995, £3,000 less than this car. Dealer: GKirby Collection in Warninglid. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-68b20817325c

• The nearest: 2023 Porsche 718 Cayman GT4 RS, 4.0 petrol coupe, white, 57 miles from this car. Mileage: 13,142 miles. Price: £127,900, £2,095 less than this car. Dealer: Baytree Cars in Derby. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-cb990236db15