2018 Porsche 718 Cayman 2.5 S

Overview

• Make: Porsche
• Model: 718 Cayman
• Trim: S
• Version: 2.5 T S PDK RWD Euro 6 (s/s) 2dr (345 bhp)
• Year: 2018
• Mileage: 37,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 2.5 litres, 345 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 167 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Porsche 718 Cayman is advertised with 37,000 miles, approximately 2,400 below the typical mileage for its age. Its asking price of £38,970 is £4,452 below the AskCar estimate of £43,422. To work out the AskCar estimate, we analyse UK dealer adverts for 313 Porsche 718 Cayman cars across different ages and specifications. We first saw this car advertised 46 days ago. Its asking price has since fallen by £1,000. The government's MOT record matches its advertised mileage. It is for sale at Performance Paddock in Rochester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Good value: £4,452 (10%) under the AskCar estimate of £43,422.

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 313 priced Porsche 718 Cayman adverts across different ages and specifications, as of 5 November 2026.

A 2018 Porsche 718 Cayman with the 2.5 petrol engine is typically advertised at £45,000: the median of the 30 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 Porsche 718 Cayman has been on sale for at least 46 days.

Price history

AskCar first saw this advert on 20 September 2026 at £39,970. Its asking price is now £38,970, £1,000 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 20 September 2026: £39,970
• 3 November 2026: £38,970

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 11 January 2027.

It has had 6 MOTs. The latest, on 7 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 36,571 miles, which matches the advertised 37,000 miles.

Advertised mileage is about 2,400 miles lower than the median mileage of a 2018 Porsche 718 Cayman on AskCar.

Similar cars

11 other 2018 Porsche 718 Cayman S 2.5 petrol automatic coupes are for sale at UK dealers, from £33,900 to £48,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, grey. Mileage: 40,920 miles. Price: £48,000, £9,030 more than this car. Dealer: Sytner Group Porsche Centre Leicester in Leicester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-774bc6aa5f97
• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, silver. Mileage: 41,000 miles. Price: £43,000, £4,030 more than this car. Dealer: Rsj Sports Cars in Slough. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-21a5b259d348
• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, silver. Mileage: 30,924 miles. Price: £48,990, £10,020 more than this car. Dealer: Stratstone Porsche Centre Wolverhampton in Wolverhampton. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-7bb9e8eaba9d

• The nearest: 2018 Porsche 718 Cayman S, 2.5 petrol coupe, white, 33 miles from this car. Mileage: 30,000 miles. Price: £39,995, £1,025 more than this car. Dealer: Southern Prestige Cars in Crawley. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-34161e369161