2018 Porsche 718 Cayman 2.5 S
Price: £48,995. Fair price: £1,885 (4%) over the AskCar estimate of £47,110, 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
- Trim: S
- Version: 2.5 T S PDK RWD Euro 6 (s/s) 2dr (345 bhp)
- Year: 2018
- Mileage: 21,236 miles
- Fuel: Petrol
- Body: Coupe, 2 doors, 2 seats
- Engine: 2.5 litres, 345 bhp
- Gearbox: Automatic (PDK)
- Drive: Rear-wheel drive
- Colour: Green
- CO2: 167 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 21,236 miles on the clock, this 2018 Porsche 718 Cayman has done roughly 18,100 fewer miles than a typical 2018 Porsche 718 Cayman. Its asking price of £48,995 is £1,885 above the AskCar estimate of £47,110. To work out the AskCar estimate, we analyse UK dealer adverts for 313 Porsche 718 Cayman cars across different ages and specifications. We first recorded this car for sale 68 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by SCC Leeds in Guiseley. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £1,885 (4%) over the AskCar estimate of £47,110.
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 68 days.
Price history
AskCar first saw this advert on 29 August 2026 at £47,995. Its asking price is now £48,995, £1,000 more.
Price changes recorded:
- 29 August 2026: £47,995
- 30 August 2026: £49,995
- 19 October 2026: £48,995
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 20 May 2027.
It has had 7 MOTs. The latest, on 18 May 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 20,338 miles, which matches the advertised 21,236 miles.
Advertised mileage is about 18,100 miles lower than the median mileage of a 2018 Porsche 718 Cayman on AskCar.
Similar cars
11 other 2018 Porsche 718 Cayman S 2.5 petrol automatic coupes are for sale at UK dealers, from £33,900 to £48,990, as of 5 November 2026.
The 3 closest to this car in mileage:
- 2018 Porsche 718 Cayman S, 2.5 petrol coupe, yellow. Mileage: 16,640 miles. Price: £45,650, £3,345 less than this car. Dealer: John Banks Honda Colchester in Colchester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-e14133130d4a
- 2018 Porsche 718 Cayman S, 2.5 petrol coupe, blue. Mileage: 27,100 miles. Price: £48,499, £496 less than this car. Dealer: Rom Motors in Atherstone. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-118df796ab14
- 2018 Porsche 718 Cayman S, 2.5 petrol coupe, white. Mileage: 30,000 miles. Price: £39,995, £9,000 less than this car. Dealer: Southern Prestige Cars in Crawley. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-34161e369161
- The nearest: 2018 Porsche 718 Cayman S, 2.5 petrol coupe, white, 54 miles from this car. Mileage: 50,000 miles. Price: £38,980, £10,015 less than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-068587ffc31d
Browse all Porsche 718 Cayman cars for sale · 2018 Porsche 718 Cayman price guide
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Photos
68 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.