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: 29,300 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 2 seats
• Engine: 2.5 litres, 360 bhp
• Gearbox: Automatic (PDK)
• Drive: Rear-wheel drive
• Colour: Red
• CO2: 186 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 29,300 miles, this 2018 Porsche 718 Boxster Gts has covered about 10,100 fewer miles than other 2018 Porsche 718 Boxster cars. Priced at £55,990, it is advertised £5,594 above the AskCar estimate of £50,396. To work out the AskCar estimate, we analyse UK dealer adverts for 190 Porsche 718 Boxster cars across different ages and specifications. This car was first seen in our listings data 18 days ago. Its advertised mileage matches the government's MOT record. The seller is Bowker Motor Group, based in Preston. 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: £5,594 (11%) over the AskCar estimate of £50,396.

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 190 priced Porsche 718 Boxster adverts across different ages and specifications, as of 5 November 2026.

A 2018 Porsche 718 Boxster with the 2.5 petrol engine is typically advertised at £46,400: the median of the 11 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 Porsche 718 Boxster has been on sale for at least 18 days.

Price history

AskCar first saw this advert on 18 October 2026 at £55,990. 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 5 April 2027.

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

There were no advisories at the latest test.

Mileage at that test: 25,099 miles, which matches the advertised 29,300 miles.

Advertised mileage is about 10,100 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 £30,975 to £61,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 Porsche 718 Boxster GTS, 2.5 petrol convertible, silver. Mileage: 31,000 miles. Price: £47,480, £8,510 less than this car. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-46341cd35e58
• 2018 Porsche 718 Boxster GTS, 2.5 petrol convertible, red. Mileage: 43,103 miles. Price: £51,995, £3,995 less than this car. Dealer: Dick Lovett Porsche Centre Swindon in Swindon. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-b00ad1211cdd
• 2018 Porsche 718 Boxster GTS, 2.5 petrol convertible, black. Mileage: 44,000 miles. Price: £46,450, £9,540 less than this car. Dealer: Sagitta Automotive in Derby. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-63028eba526c