2017 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: 2017
• Mileage: 40,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 2.5 litres, 345 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Red
• CO2: 167 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 40,000 miles, this 2017 Porsche 718 Cayman has covered about 2,500 more miles than other 2017 Porsche 718 Cayman cars. The AskCar estimate for this car is £40,979. It is priced at £40,000, which is £979 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 306 Porsche 718 Cayman cars across different ages and specifications. It first appeared in our advert records 78 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at GMZ Motors in Newcastle Upon Tyne. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £979 (2%) under the AskCar estimate of £40,979.

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 306 priced Porsche 718 Cayman adverts across different ages and specifications, as of 4 November 2026.

A 2017 Porsche 718 Cayman with the 2.5 petrol engine is typically advertised at £40,000: the median of the 11 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2017 Porsche 718 Cayman has been on sale for at least 78 days.

Price history

AskCar first saw this advert on 18 August 2026 at £40,000. Its asking price has not changed.

Price changes recorded:

• 18 August 2026: £40,000
• 8 September 2026: £39,500
• 13 October 2026: £40,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 11 March 2027.

It has had 8 MOTs. The latest, on 27 February 2026, passed.

Advisories at the latest test: front brake disc worn, pitted or scored, but not seriously weakened.

Mileage at that test: 37,289 miles, which matches the advertised 40,000 miles.

Advertised mileage is about 2,500 miles higher than the median mileage of a 2017 Porsche 718 Cayman on AskCar.

Similar cars

6 other 2017 Porsche 718 Cayman S 2.5 petrol automatic coupes are for sale at UK dealers, from £32,975 to £49,990, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, grey. Mileage: 39,000 miles. Price: £35,990, £4,010 less than this car. Dealer: SR Motors in Swindon. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-8c25c3b59d3a
• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, blue. Mileage: 38,500 miles. Price: £41,492, £1,492 more than this car. Dealer: Country Car in Warwick. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-27428deb61fc
• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, blue. Mileage: 36,500 miles. Price: £39,995, the same price as this car. Dealer: Rotate Motorsport in Bournemouth. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-811b65418a67

• The nearest: 2017 Porsche 718 Cayman S, 2.5 petrol coupe, silver, 111 miles from this car. Mileage: 27,009 miles. Price: £49,990, £9,990 more than this car. Dealer: Stratstone Porsche Centre Stockport in Stockport. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-a278fff57ca1