Used Porsche 718 Cayman GT4 RS prices

There are 21 used Porsche 718 Cayman GT4 RS cars for sale from UK dealers on AskCar, as of 10 November 2026. Typical asking price £135,000 (the median: half cost less, half cost more). The cheapest is £96,950. The middle half are priced between £129,000 and £138,500.

Dealers lowered the asking price on 2 of the 21 Porsche 718 Cayman GT4 RS cars in the 14 days to 10 November 2026.

AskCar lists 332 used Porsche 718 Cayman across the UK, from 216 dealerships.

As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

Porsche 718 Cayman GT4 RS 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 20 cars listed here meet these rules. Page 2 lists every other Porsche 718 Cayman GT4 RS car, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 318 priced Porsche 718 Cayman adverts on AskCar as of 10 November 2026. The figures on this page describe the cars advertised, not a valuation of every Porsche 718 Cayman GT4 RS.

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 Porsche 718 Cayman GT4 RS: priced furthest below the AskCar estimate

Their asking prices run from £96,950 to £140,357.

Cheapest Porsche 718 Cayman GT4 RS: the lowest asking prices

These 10 are priced £96,950 to £134,995. They have covered 2,000 to 18,700 miles.

Lowest-mileage Porsche 718 Cayman GT4 RS

These 10 have covered 1,120 to 5,500 miles. Their asking prices run from £129,995 to £144,995.

Recently reduced Porsche 718 Cayman GT4 RS: the biggest price reductions in the 14 days to 10 November 2026

The dealer lowered the asking price on each of these 2 in the 14 days to 10 November 2026. Their reductions since AskCar first saw them run from £1,000 to £10,000.

Newly advertised Porsche 718 Cayman GT4 RS: first seen by AskCar in the 7 days to 10 November 2026

These 2 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

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