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: 27,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 2.5 litres, 345 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Silver
• CO2: 167 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2017 Porsche 718 Cayman is advertised with 27,000 miles, approximately 10,500 below the typical mileage for its age. The dealer is asking £49,990, which is £5,955 above the AskCar estimate of £44,035. To work out the AskCar estimate, we analyse UK dealer adverts for 325 Porsche 718 Cayman cars across different ages and specifications. We have tracked this advert for 1 day. The latest recorded MOT expiry date is 17 July 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Porsche Centre Stockport, based in Stockport. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £5,955 (13%) over the AskCar estimate of £44,035.

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 325 priced Porsche 718 Cayman adverts across different ages and specifications, as of 11 November 2026.

A 2017 Porsche 718 Cayman with the 2.5 petrol engine is typically advertised at £40,700: the median of the 12 for sale on AskCar, as of 11 November 2026.

Time on sale

AskCar first saw this 2017 Porsche 718 Cayman advertised 1 day ago.

Price history

AskCar first saw this advert on 10 November 2026 at £49,990. 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 11 November 2026: the latest record we hold ran out on 17 July 2026; ask the dealer for the current MOT.

It has had 7 MOTs. The latest, on 18 July 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 21,286 miles, which matches the advertised 27,000 miles.

Advertised mileage is about 10,500 miles lower than the median mileage of a 2017 Porsche 718 Cayman on AskCar.

Similar cars

7 other 2017 Porsche 718 Cayman S 2.5 petrol automatic coupes are for sale at UK dealers, from £32,975 to £42,950, as of 11 November 2026.

The 3 closest to this car in mileage:

• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, silver. Mileage: 30,000 miles. Price: £42,950, £7,040 less than this car. Dealer: Lodge Motor Co in Yateley. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-141125c2ee16
• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, blue. Mileage: 36,500 miles. Price: £39,995, £9,995 less than this car. Dealer: Rotate Motorsport in Bournemouth. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-811b65418a67
• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, blue. Mileage: 38,500 miles. Price: £41,492, £8,498 less than this car. Dealer: Country Car in Warwick. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-27428deb61fc

• The nearest: 2017 Porsche 718 Cayman S, 2.5 petrol coupe, white, 73 miles from this car. Mileage: 75,099 miles. Price: £32,975, £17,015 less than this car. Dealer: Junction 17 Cars Limited t/a Junction 17 Cars (Grantham) in Grantham. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-4c2d54f1b5cc