2018 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: 2018
• Mileage: 16,640 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 2.5 litres, 345 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Yellow
• CO2: 167 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 16,640 miles, this 2018 Porsche 718 Cayman has covered about 22,700 fewer miles than other 2018 Porsche 718 Cayman cars. Priced at £45,650, it is advertised £2,487 below the AskCar estimate of £48,137. The AskCar estimate draws on 313 Porsche 718 Cayman adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 43 days ago, and its asking price has since fallen by £4,145. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is John Banks Honda Colchester, based in Colchester. 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: £2,487 (5%) under the AskCar estimate of £48,137.

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 43 days.

Price history

AskCar first saw this advert on 23 September 2026 at £49,795. Its asking price is now £45,650, £4,145 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 23 September 2026: £49,795
• 23 October 2026: £47,850
• 5 November 2026: £45,650

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 April 2027.

It has had 5 MOTs. The latest, on 29 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 15,365 miles, which matches the advertised 16,640 miles.

Advertised mileage is about 22,700 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 £48,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, green. Mileage: 21,236 miles. Price: £48,995, £3,345 more than this car. Dealer: SCC Leeds in Guiseley. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-bb08a3777303
• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, blue. Mileage: 27,100 miles. Price: £48,499, £2,849 more 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, £5,655 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, 43 miles from this car. Mileage: 37,000 miles. Price: £38,970, £6,680 less than this car. Dealer: Performance Paddock in Rochester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-32a9f8fa91da