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: 75,099 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

With 75,099 miles on the clock, this 2017 Porsche 718 Cayman has done roughly 36,600 more miles than a typical 2017 Porsche 718 Cayman. Its asking price of £32,975 is £387 above the AskCar estimate of £32,588. The AskCar estimate uses 313 UK dealer adverts for the Porsche 718 Cayman, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 161 days ago. Its advertised mileage matches the government's MOT record. The seller is Junction 17 Cars Limited t/a Junction 17 Cars (Grantham), based in Grantham. 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: £387 (1%) over the AskCar estimate of £32,588.

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 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 5 November 2026.

Time on sale

This 2017 Porsche 718 Cayman has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £31,475. Its asking price is now £32,975, £1,500 more.

Price changes recorded:

• 28 May 2026: £31,475
• 16 June 2026: £31,445
• 8 October 2026: £32,975

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 28 May 2027.

It failed its MOT on 28 May 2026 (offside front tyre has ply or cords exposed) and passed 1 day later, on 29 May 2026.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing slightly worn.

Mileage at that test: 75,053 miles, which matches the advertised 75,099 miles.

Advertised mileage is about 36,600 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 £35,990 to £49,990, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, blue. Mileage: 57,359 miles. Price: £39,950, £6,975 more than this car. Dealer: Group 1 Automotive Porsche Centre Bournemouth in Bournemouth. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-062d50a2b414
• 2017 Porsche 718 Cayman S, 2.5 petrol coupe, red. Mileage: 40,000 miles. Price: £40,000, £7,025 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, grey. Mileage: 39,000 miles. Price: £35,990, £3,015 more than this car. Dealer: SR Motors in Swindon. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-8c25c3b59d3a

• The nearest: 2017 Porsche 718 Cayman S, 2.5 petrol coupe, blue, 61 miles from this car. Mileage: 38,500 miles. Price: £41,492, £8,517 more than this car. Dealer: Country Car in Warwick. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-27428deb61fc