2018 Porsche 718 Cayman 2.5 GTS

Overview

• Make: Porsche
• Model: 718 Cayman
• Trim: GTS
• Version: 2.5 T GTS PDK RWD Euro 6 (s/s) 2dr (360 bhp)
• Year: 2018
• Mileage: 52,678 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 2.5 litres, 360 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 194 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Porsche 718 Cayman Gts has covered 52,678 miles, around 13,300 more miles than is typical for its age. The AskCar estimate for this car is £43,785. It is priced at £46,798, which is £3,013 above that estimate. The AskCar estimate draws on 313 Porsche 718 Cayman adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 27 days ago. Its asking price has since fallen by £201. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Automotive Porsche Centre Portsmouth, based in Portsmouth. 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: £3,013 (6%) over the AskCar estimate of £43,785.

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

This 2018 Porsche 718 Cayman has been on sale for at least 27 days.

Price history

AskCar first saw this advert on 9 October 2026 at £46,999. Its asking price is now £46,798, £201 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 9 October 2026: £46,999
• 23 October 2026: £46,799
• 1 November 2026: £46,798

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 13 May 2027.

It has had 6 MOTs. The latest, on 14 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 52,063 miles, which matches the advertised 52,678 miles.

Advertised mileage is about 13,300 miles higher than the median mileage of a 2018 Porsche 718 Cayman on AskCar.

Similar cars

13 other 2018 Porsche 718 Cayman GTS 2.5 petrol automatic coupes are for sale at UK dealers, from £38,950 to £59,999, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Porsche 718 Cayman GTS, 2.5 petrol coupe, white. Mileage: 50,000 miles. Price: £42,491, £4,307 less than this car. Dealer: Autothentic in Tockwith. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-f2a61dfa0925
• 2018 Porsche 718 Cayman GTS, 2.5 petrol coupe. Mileage: 50,000 miles. Price: £44,999, £1,799 less than this car. Dealer: MSK Cars in London. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-363798003d72
• 2018 Porsche 718 Cayman GTS, 2.5 petrol coupe, grey. Mileage: 48,452 miles. Price: £43,975, £2,823 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-2018-ef6cd33bb451

• The nearest: 2018 Porsche 718 Cayman GTS, 2.5 petrol coupe, black, 10 miles from this car. Mileage: 26,000 miles. Price: £49,995, £3,197 more than this car. Dealer: Peter Nash Specialist Cars in Southampton. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-f9dc8e473a19