2017 Porsche 718 Boxster 2.5 S

Price: £38,490. Fair price: £1,276 (3%) under the AskCar estimate of £39,766, our expected asking price for this car from its model, age, mileage and specification, drawing on 190 priced Porsche 718 Boxster adverts on AskCar as of 5 November 2026.

AskCar lists 191 used Porsche 718 Boxster from 134 UK dealerships, as of 5 November 2026.

Overview

  • Make: Porsche
  • Model: 718 Boxster
  • Trim: S
  • Version: 2.5 T S PDK RWD Euro 6 (s/s) 2dr (345 bhp)
  • Year: 2017
  • Mileage: 40,768 miles
  • Fuel: Petrol
  • Body: Convertible, 2 doors, 2 seats
  • Engine: 2.5 litres, 345 bhp
  • Gearbox: Automatic (PDK)
  • Drive: Rear-wheel drive
  • Colour: Red
  • CO2: 167 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2017 Porsche 718 Boxster is advertised with 40,768 miles, approximately 8,600 above the typical mileage for its age. Priced at £38,490, it is advertised £1,276 below the AskCar estimate of £39,766. The AskCar estimate uses UK dealer asking prices, including 190 Porsche 718 Boxster adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 161 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Auto Manor, based in Alton. 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: £1,276 (3%) under the AskCar estimate of £39,766.

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 2017 Porsche 718 Boxster with the 2.5 petrol engine is typically advertised at £39,000: the median of the 11 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2017 Porsche 718 Boxster has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £38,490. 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 31 May 2027.

It has had 9 MOTs. The latest, on 1 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,758 miles, which matches the advertised 40,768 miles.

Advertised mileage is about 8,600 miles higher than the median mileage of a 2017 Porsche 718 Boxster on AskCar.

Similar cars

5 other 2017 Porsche 718 Boxster S 2.5 petrol automatic convertibles are for sale at UK dealers, from £35,370 to £46,950, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2017 Porsche 718 Boxster S, 2.5 petrol convertible, black. Mileage: 48,329 miles. Price: £35,370, £3,120 less than this car. Dealer: Ryds Group in London. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2017-cdb2bcac8b11
  • 2017 Porsche 718 Boxster S, 2.5 petrol convertible, blue. Mileage: 30,000 miles. Price: £41,490, £3,000 more than this car. Dealer: Smiths Sports and Performance in Melton Mowbray. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2017-1b4a082fd94d
  • 2017 Porsche 718 Boxster S, 2.5 petrol convertible, white. Mileage: 28,987 miles. Price: £40,666, £2,176 more than this car. Dealer: Lawton Brook in Knaresborough. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2017-68040524c04f
  • The nearest: 2017 Porsche 718 Boxster S, 2.5 petrol convertible, black, 47 miles from this car. Mileage: 24,388 miles. Price: £46,950, £8,460 more than this car. Dealer: Group 1 Automotive Porsche Centre Bournemouth in Bournemouth. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2017-8f38d917dd7c

Browse all Porsche 718 Boxster cars for sale · 2017 Porsche 718 Boxster price guide

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Photos

39 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.