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: 39,000 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

This 2017 Porsche 718 Cayman has covered 39,000 miles. Its asking price of £35,990 is £5,226 below the AskCar estimate of £41,216. To work out the AskCar estimate, we analyse UK dealer adverts for 306 Porsche 718 Cayman cars across different ages and specifications. We first recorded this advert 138 days ago, and its asking price has since fallen by £3,500. The recorded MOT expired on 2 November 2026, so ask the dealer whether it has been renewed. We checked its advertised mileage against the government's MOT record, and they match. The seller is SR Motors, based in Swindon. 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

Good value: £5,226 (12%) under the AskCar estimate of £41,216.

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 138 days.

Price history

AskCar first saw this advert on 19 June 2026 at £39,490. Its asking price is now £35,990, £3,500 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 19 June 2026: £39,490
• 12 July 2026: £38,990
• 29 July 2026: £39,622
• 30 July 2026: £39,997
• 31 July 2026: £39,884
• 5 August 2026: £40,045
• 7 August 2026: £40,857
• 8 August 2026: £41,016
• 13 August 2026: £38,990
• 26 August 2026: £36,990
• 14 September 2026: £38,990
• 16 September 2026: £39,505
• 17 September 2026: £38,693
• 30 September 2026: £38,592
• 8 October 2026: £38,434
• 10 October 2026: £38,589
• 14 October 2026: £38,477
• 16 October 2026: £38,517
• 24 October 2026: £38,407
• 28 October 2026: £37,941
• 31 October 2026: £38,243
• 1 November 2026: £35,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 2 November 2026; ask the dealer for the current MOT.

It has had 7 MOTs. The latest, on 3 November 2025, passed.

Advisories at the latest test: front tyre slightly damaged/cracking or perishing both front tyres; offside front windscreen wiper blade defective; oil leak, but not excessive.

Mileage at that test: 35,787 miles, which matches the advertised 39,000 miles.

Advertised mileage is about 1,500 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, blue. Mileage: 38,500 miles. Price: £41,492, £5,502 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, red. Mileage: 40,000 miles. Price: £40,000, £4,010 more than this car. Dealer: GMZ Motors in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-a0c591d2596b
• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, blue. Mileage: 36,500 miles. Price: £39,995, £4,005 more than this car. Dealer: Rotate Motorsport in Bournemouth. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-811b65418a67