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: 40,920 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 2 seats
• Engine: 2.5 litres, 345 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 167 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Porsche 718 Cayman has covered 40,920 miles. The dealer is asking £48,000, which is £5,549 above the AskCar estimate of £42,451. 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 6 days ago. Its advertised mileage matches the government's MOT record. The seller is Sytner Group Porsche Centre Leicester, based in Leicester. 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

Above the going rate: £5,549 (13%) over the AskCar estimate of £42,451.

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

AskCar first saw this 2018 Porsche 718 Cayman advertised 6 days ago. About half of 2018 Porsche 718 Cayman cars are gone from sale within a month of being advertised: 27 of the 58 first advertised between 11 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £48,000. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 19 February 2027.

It has had 6 MOTs. The latest, on 5 February 2026, passed.

Advisories at the latest test: all tyres getting low, between 2.5-3.5mm at lowest points.

Mileage at that test: 38,985 miles, which matches the advertised 40,920 miles.

Advertised mileage is about 1,500 miles higher 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, silver. Mileage: 41,000 miles. Price: £43,000, £5,000 less than this car. Dealer: Rsj Sports Cars in Slough. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-21a5b259d348
• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, white. Mileage: 37,000 miles. Price: £38,970, £9,030 less than this car. Dealer: Performance Paddock in Rochester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-32a9f8fa91da
• 2018 Porsche 718 Cayman S, 2.5 petrol coupe, grey. Mileage: 46,106 miles. Price: £39,455, £8,545 less than this car. Dealer: Northridge Cars Hemel Hempstead in Hemel Hempstead. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-ddbe0eb11e80

• The nearest: 2018 Porsche 718 Cayman S, 2.5 petrol coupe, blue, 20 miles from this car. Mileage: 27,100 miles. Price: £48,499, £499 more than this car. Dealer: Rom Motors in Atherstone. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-118df796ab14