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: 46,106 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 2.5 litres, 345 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 167 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 46,106 miles on the clock, this 2018 Porsche 718 Cayman has done roughly 6,700 more miles than a typical 2018 Porsche 718 Cayman. The dealer is asking £39,455, which is £1,746 below the AskCar estimate of £41,201. To work out the AskCar estimate, we analyse UK dealer adverts for 313 Porsche 718 Cayman cars across different ages and specifications. This car was first seen in our listings data 1 day ago. Its advertised mileage matches the government's MOT record. The seller is Northridge Cars Hemel Hempstead, based in Hemel Hempstead. 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

Fair price: £1,746 (4%) under the AskCar estimate of £41,201.

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

AskCar first saw this 2018 Porsche 718 Cayman advertised 1 day ago. About half of 2018 Porsche 718 Cayman cars are gone from sale within a month of being advertised: 27 of the 58 first advertised between 11 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £39,455. 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 5 November 2026: valid until 26 May 2027.

It has had 5 MOTs. The latest, on 27 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 42,824 miles, which matches the advertised 46,106 miles.

Advertised mileage is about 6,700 miles higher 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, white. Mileage: 50,000 miles. Price: £38,980, £475 less than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-068587ffc31d
• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, silver. Mileage: 51,000 miles. Price: £34,480, £4,975 less than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-80dcf998545a
• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, silver. Mileage: 41,000 miles. Price: £43,000, £3,545 more than this car. Dealer: Rsj Sports Cars in Slough. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-21a5b259d348