2018 Porsche 718 Boxster 2.5 GTS
Price: £47,480. Fair price: £2,372 (4%) under the AskCar estimate of £49,852, our expected asking price for this car from its model, age, mileage and specification, drawing on 195 priced Porsche 718 Boxster adverts on AskCar as of 4 November 2026.
AskCar lists 196 used Porsche 718 Boxster from 138 UK dealerships, as of 4 November 2026.
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: 31,000 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 2 seats
- Engine: 2.5 litres, 360 bhp
- Gearbox: Automatic (PDK)
- Drive: Rear-wheel drive
- Colour: Silver
- CO2: 186 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Porsche 718 Boxster Gts is advertised with 31,000 miles, approximately 8,400 below the typical mileage for its age. Its asking price of £47,480 is £2,372 below the AskCar estimate of £49,852. To work out the AskCar estimate, we analyse UK dealer adverts for 195 Porsche 718 Boxster cars across different ages and specifications. Since we first spotted the advert 49 days ago, the asking price has dropped by £1,500. It is advertised by Auto100.Co.Uk in Sutton-in-Ashfield. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £2,372 (4%) under the AskCar estimate of £49,852.
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 195 priced Porsche 718 Boxster adverts across different ages and specifications, as of 4 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 4 November 2026.
Time on sale
This 2018 Porsche 718 Boxster has been on sale for at least 49 days.
Price history
AskCar first saw this advert on 16 September 2026 at £48,980. Its asking price is now £47,480, £1,500 less. The latest price cut was seen on 30 October 2026.
Price changes recorded:
- 16 September 2026: £48,980
- 30 September 2026: £48,480
- 2 October 2026: £47,980
- 7 October 2026: £47,780
- 12 October 2026: £48,480
- 20 October 2026: £47,980
- 25 October 2026: £47,780
- 30 October 2026: £47,480
Mileage and MOT
Advertised mileage is about 8,400 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 £31,975 to £61,995, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2018 Porsche 718 Boxster GTS, 2.5 petrol convertible, red. Mileage: 29,300 miles. Price: £55,990, £8,510 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, red. Mileage: 43,103 miles. Price: £51,995, £4,515 more 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, £1,030 less than this car. Dealer: Sagitta Automotive in Derby. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-63028eba526c
Browse all Porsche 718 Boxster cars for sale · 2018 Porsche 718 Boxster price guide
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Photos
40 photos of this car are on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.