2018 Porsche 718 Boxster 2.5 GTS

Overview

• Make: Porsche
• Model: 718 Boxster
• Trim: GTS
• Version: 2.5 T GTS PDK RWD Euro 6 (s/s) 2dr (360 bhp)
• Year: 2018
• Mileage: 10,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.5 litres, 360 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 186 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2018 Porsche 718 Boxster Gts is 10,000 miles. This car is priced at £31,975, £23,193 below the AskCar estimate of £55,168. Such a large price gap is worth checking with the dealer. To work out the AskCar estimate, we analyse UK dealer adverts for 189 Porsche 718 Boxster cars across different ages and specifications. This car was first seen in our listings data 40 days ago. The last MOT shows 101,579 miles, more than the advert. This is worth checking with the dealer. Its MOT is recorded as valid until 6 July 2027. The seller is Sandwell Car Sales, based in West Bromwich. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Far below the going rate: £23,193 (42%) under the AskCar estimate of £55,168. Worth asking the dealer why.

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 189 priced Porsche 718 Boxster adverts across different ages and specifications, as of 2 November 2026.

A 2018 Porsche 718 Boxster with the 2.5 petrol engine is typically advertised at £45,700: the median of the 12 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 Porsche 718 Boxster has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 23 September 2026 at £31,975. 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 2 November 2026: valid until 6 July 2027.

It has had 6 MOTs. The latest, on 7 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 101,579 miles. The advert says 10,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 31,500 miles lower than the median mileage of a 2018 Porsche 718 Boxster on AskCar.

Similar cars

9 other 2018 Porsche 718 Boxster GTS 2.5 petrol automatic convertibles are for sale at UK dealers, from £39,995 to £61,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Porsche 718 Boxster GTS, 2.5 petrol convertible, red. Mileage: 4,200 miles. Price: £61,995, £30,020 more than this car. Dealer: Mayfields in Telford. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-55470444abcc
• 2018 Porsche 718 Boxster GTS, 2.5 petrol convertible, red. Mileage: 29,300 miles. Price: £55,990, £24,015 more than this car. Dealer: Bowker Motor Group in Preston. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-3c8c278e9db6
• 2018 Porsche 718 Boxster GTS, 2.5 petrol convertible, silver. Mileage: 31,000 miles. Price: £47,480, £15,505 more than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-46341cd35e58

• The nearest: 2018 Porsche 718 Boxster GTS, 2.5 petrol convertible, white, 11 miles from this car. Mileage: 54,000 miles. Price: £41,950, £9,975 more than this car. Dealer: Sutton Car Sales in Sutton Coldfield. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-92e0fa1d5147