2018 Porsche 718 Cayman 2.5 S
Price: £39,490. Fair price: £1,395 (3%) under the AskCar estimate of £40,885, our expected asking price for this car from its model, age, mileage and specification, drawing on 313 priced Porsche 718 Cayman adverts on AskCar as of 5 November 2026.
AskCar lists 323 used Porsche 718 Cayman from 207 UK dealerships, as of 5 November 2026.
Overview
- Make: Porsche
- Model: 718 Cayman
- Version: 2.5 PDK RWD Euro 6 2dr (345 bhp)
- Year: 2018
- Mileage: 56,781 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 2 seats
- Engine: 2.5 litres, 345 bhp
- Gearbox: Automatic (PDK)
- Drive: Rear-wheel drive
- Colour: Grey
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Porsche 718 Cayman is advertised with 56,781 miles, approximately 17,400 above the typical mileage for its age. The dealer is asking £39,490, which is £1,395 below the AskCar estimate of £40,885. To work out the AskCar estimate, we analyse UK dealer adverts for 313 Porsche 718 Cayman cars across different ages and specifications. We first saw this car advertised 37 days ago. Its asking price has since fallen by £500. The seller is Noya Motor Group, based in Peterborough. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £1,395 (3%) under the AskCar estimate of £40,885.
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 37 days.
Price history
AskCar first saw this advert on 29 September 2026 at £39,990. Its asking price is now £39,490, £500 less. The latest price cut was seen on 14 October 2026.
Price changes recorded:
- 29 September 2026: £39,990
- 14 October 2026: £39,490
Mileage and MOT
Advertised mileage is about 17,400 miles higher than the median mileage of a 2018 Porsche 718 Cayman on AskCar.
Browse all Porsche 718 Cayman cars for sale · 2018 Porsche 718 Cayman price guide
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Photos
39 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.