2018 Porsche 718 Boxster prices

There are 37 used 2018 Porsche 718 Boxster cars for sale from UK dealers on AskCar, as of 8 November 2026. Typical asking price £43,000 (the median: half cost less, half cost more). The cheapest is £30,975. The middle half are priced between £40,000 and £49,500. Median mileage: about 38,000 miles.

Dealers lowered the asking price on more than one in five of 2018 Porsche 718 Boxster cars: 8 of the 37 in the 14 days to 8 November 2026.

2018 Porsche 718 Boxster against other years

A 2017 Porsche 718 Boxster car has a typical asking price of £38,500 and a 2019 one £44,000, as of 8 November 2026.

AskCar lists 201 used Porsche 718 Boxster across the UK, from 137 dealerships.

As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 Porsche 718 Boxster cars for sale now, page 1 of 2

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. All 36 cars listed here meet these rules. Page 2 lists every other 2018 Porsche 718 Boxster car, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 199 priced Porsche 718 Boxster adverts on AskCar as of 8 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Porsche 718 Boxster.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 1 car whose advertised mileage is lower than the mileage recorded at its last MOT test.

Best value 2018 Porsche 718 Boxster: priced furthest below the AskCar estimate

These 10 are priced 6% to 17% under their AskCar estimate. Their asking prices run from £33,495 to £44,990.

Cheapest 2018 Porsche 718 Boxster: the lowest asking prices

These 10 are priced £31,995 to £39,995. They have covered 21,000 to 69,876 miles.

Lowest-mileage 2018 Porsche 718 Boxster

These 10 have covered 4,200 to 28,000 miles. Their asking prices run from £37,995 to £61,995.

Recently reduced 2018 Porsche 718 Boxster: the biggest price reductions in the 14 days to 8 November 2026

The dealer lowered the asking price on each of these 7 in the 14 days to 8 November 2026. Their reductions since AskCar first saw them run from £500 to £3,000.

Newly advertised 2018 Porsche 718 Boxster: first seen by AskCar in the 7 days to 8 November 2026

These 7 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

Porsche 718 Boxster by gearbox, fuel and body

Porsche 718 Boxster prices by year

Porsche 718 Boxster by trim

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