Used Porsche 718 Cayman S prices
There are 25 used Porsche 718 Cayman S cars for sale from UK dealers on AskCar, as of 1 November 2026. Typical asking price £40,000 (the median: half cost less, half cost more). The cheapest is £32,975. The middle half are priced between £38,000 and £48,000.
Dealers lowered the asking price on more than a third of Porsche 718 Cayman S cars: 10 of the 25 in the 14 days to 1 November 2026.
AskCar lists 311 used Porsche 718 Cayman across the UK, from 201 dealerships.
As of 1 November 2026, AskCar lists 578,994 cars and vans from 12,654 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Porsche 718 Cayman S cars for sale now
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 24 cars listed here meet these rules.
The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 302 priced Porsche 718 Cayman adverts on AskCar as of 1 November 2026. The figures on this page describe the cars advertised, not a valuation of every Porsche 718 Cayman S.
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 S: priced furthest below the AskCar estimate
These 10 are priced 1% to 17% under their AskCar estimate. Their asking prices run from £34,980 to £54,980.
- 2023 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, grey. Mileage: 8,000 miles. Price: £54,980, reduced by £6,000 from £60,980 since AskCar first saw it on 12 June 2026, 142 days ago. Good value: £11,321 (17%) under the AskCar estimate of £66,301. Euro 6 emissions standard. ULEZ compliant. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2023-5f2f75d421f6
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, silver. Mileage: 51,000 miles. Price: £34,980, reduced by £3,000 from £37,980 since AskCar first saw it on 12 October 2026, 20 days ago. Good value: £5,382 (13%) under the AskCar estimate of £40,362. Euro 6 emissions standard. ULEZ compliant. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-80dcf998545a
- 2017 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, grey. Mileage: 39,000 miles. Price: £35,990, reduced by £3,500 from £39,490 since AskCar first saw it on 19 June 2026, 135 days ago. Good value: £5,258 (12%) under the AskCar estimate of £41,248. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 November 2026. Dealer: SR Motors in Swindon. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-8c25c3b59d3a
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, white. Mileage: 30,000 miles. Price: £39,995, unchanged since AskCar first saw it on 3 October 2026, 29 days ago. Good value: £5,610 (12%) under the AskCar estimate of £45,605. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 February 2027. Dealer: Southern Prestige Cars in Crawley. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-34161e369161
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, white. Mileage: 37,000 miles. Price: £39,970, unchanged since AskCar first saw it on 20 September 2026, 42 days ago. Good value: £3,816 (8%) under the AskCar estimate of £43,786. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 January 2027. Dealer: Performance Paddock in Rochester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-32a9f8fa91da
- 2019 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, grey. Mileage: 37,711 miles. Price: £44,640, raised by £140 from £44,500 since AskCar first saw it on 15 August 2026, 78 days ago. Fair price: £2,524 (5%) under the AskCar estimate of £47,164. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 24 March 2023; ask the dealer for the current MOT. Dealer: Phantom Motor Company in Hindley Green. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2019-49499b000a19
- 2017 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, blue. Mileage: 36,500 miles. Price: £39,995, raised by £5 from £39,990 since AskCar first saw it on 17 June 2026, 137 days ago. Fair price: £1,857 (4%) under the AskCar estimate of £41,852. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 18 September 2026; ask the dealer for the current MOT. Dealer: Rotate Motorsport in Bournemouth. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-811b65418a67
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, white. Mileage: 50,000 miles. Price: £38,980, reduced by £1,000 from £39,980 since AskCar first saw it on 24 September 2026, 38 days ago. Fair price: £1,618 (3%) under the AskCar estimate of £40,598. Euro 6 emissions standard. ULEZ compliant. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-068587ffc31d
- 2017 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, red. Mileage: 40,000 miles. Price: £40,000, unchanged since AskCar first saw it on 18 August 2026, 75 days ago. Fair price: £1,009 (2%) under the AskCar estimate of £41,009. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 March 2027. Dealer: GMZ Motors in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-a0c591d2596b
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, yellow. Mileage: 16,640 miles. Price: £47,850, reduced by £1,945 from £49,795 since AskCar first saw it on 23 September 2026, 39 days ago. Fair price: £737 (1%) under the AskCar estimate of £48,587. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 April 2027. Dealer: John Banks Honda Colchester in Colchester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-e14133130d4a
Cheapest Porsche 718 Cayman S: the lowest asking prices
These 10 are priced £32,975 to £39,970. They have covered 35,801 to 80,544 miles.
- 2017 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, white. Mileage: 75,099 miles. Price: £32,975, raised by £1,500 from £31,475 since AskCar first saw it on 28 May 2026, 157 days ago. Fair price: £381 (1%) over the AskCar estimate of £32,594. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 May 2027. Dealer: Junction 17 Cars Limited t/a Junction 17 Cars (Grantham) in Grantham. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-4c2d54f1b5cc
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, grey. Mileage: 80,544 miles. Price: £33,900, unchanged since AskCar first saw it on 15 October 2026, 17 days ago. Fair price: £1,071 (3%) over the AskCar estimate of £32,829. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 October 2027. Dealer: Sytner Select Northampton in Northampton. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-810d8ca163d7
- 2018 Porsche 718 Cayman 2.5 S: £34,980, 51,000 miles. Listed in full under best value.
- 2017 Porsche 718 Cayman 2.5 S: £35,990, 39,000 miles. Listed in full under best value.
- 2016 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, red. Mileage: 54,700 miles. Price: £37,495, unchanged since AskCar first saw it on 14 September 2026, 48 days ago. Fair price: £2,114 (5%) over the AskCar estimate of £35,381. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 April 2027. Dealer: Cars of Tardebigge in Bromsgrove. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2016-ad1a95c50811
- 2016 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, silver. Mileage: 51,000 miles. Price: £38,000, unchanged since AskCar first saw it on 24 October 2026, 8 days ago. Fair price: £1,850 (5%) over the AskCar estimate of £36,150. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 November 2026. Dealer: Rsj Sports Cars in Slough. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2016-39cdcdd01905
- 2018 Porsche 718 Cayman 2.5 S: £38,980, 50,000 miles. Listed in full under best value.
- 2016 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, blue. Mileage: 35,801 miles. Price: £39,750. AskCar first saw it on 9 September 2026, 53 days ago. Fair price: £260 (under 1%) over the AskCar estimate of £39,490. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 January 2027. Dealer: Argon Automotive in Kempston. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2016-78194a1acdad
- 2017 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, blue. Mileage: 57,359 miles. Price: £39,950, reduced by £1,000 from £40,950 since AskCar first saw it on 14 October 2026, 18 days ago. Fair price: £2,879 (7%) over the AskCar estimate of £37,071. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 24 February 2027. Dealer: Group 1 Automotive Porsche Centre Bournemouth in Bournemouth. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-062d50a2b414
- 2018 Porsche 718 Cayman 2.5 S: £39,970, 37,000 miles. Listed in full under best value.
Lowest-mileage Porsche 718 Cayman S
These 10 have covered 8,000 to 36,500 miles. Their asking prices run from £39,750 to £54,980.
- 2023 Porsche 718 Cayman 2.5 S: £54,980, 8,000 miles. Listed in full under best value.
- 2019 Porsche 718 Cayman 2.5 S, 345 bhp, manual, petrol, coupe, 2 doors, 2 seats, grey. Mileage: 15,347 miles. Price: £46,999, reduced by £1,991 from £48,990 since AskCar first saw it on 30 May 2026, 155 days ago. Fair price: £136 (under 1%) under the AskCar estimate of £47,135. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 January 2027. Dealer: cartime Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2019-d36e93221267
- 2018 Porsche 718 Cayman 2.5 S: £47,850, 16,640 miles. Listed in full under best value.
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, green. Mileage: 21,236 miles. Price: £48,995, raised by £1,000 from £47,995 since AskCar first saw it on 29 August 2026, 64 days ago. Fair price: £1,455 (3%) over the AskCar estimate of £47,540. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 May 2027. Dealer: SCC Leeds in Guiseley. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-bb08a3777303
- 2017 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, silver. Mileage: 27,009 miles. Price: £49,990, reduced by £1 from £49,991 since AskCar first saw it on 24 June 2026, 130 days ago. Above the going rate: £5,905 (13%) over the AskCar estimate of £44,085. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 17 July 2026; ask the dealer for the current MOT. Dealer: Stratstone Porsche Centre Stockport in Stockport. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-a278fff57ca1
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, blue. Mileage: 27,100 miles. Price: £48,999, reduced by £1,000 from £49,999 since AskCar first saw it on 11 September 2026, 51 days ago. Fair price: £2,763 (5%) over the AskCar estimate of £46,236. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 31 March 2027. Dealer: Rom Motors in Atherstone. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-118df796ab14
- 2018 Porsche 718 Cayman 2.5 S: £39,995, 30,000 miles. Listed in full under best value.
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, silver. Mileage: 30,924 miles. Price: £48,990, reduced by £1,500 from £50,490 since AskCar first saw it on 13 October 2026, 19 days ago. Above the going rate: £3,630 (8%) over the AskCar estimate of £45,360. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 January 2027. Dealer: Stratstone Porsche Centre Wolverhampton in Wolverhampton. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-7bb9e8eaba9d
- 2016 Porsche 718 Cayman 2.5 S: £39,750, 35,801 miles. Listed in full under cheapest.
- 2017 Porsche 718 Cayman 2.5 S: £39,995, 36,500 miles. Listed in full under best value.
Recently reduced Porsche 718 Cayman S: the biggest price reductions in the 14 days to 1 November 2026
The dealer lowered the asking price on each of these 10 in the 14 days to 1 November 2026. Their reductions since AskCar first saw them run from £1 to £6,000.
- 2023 Porsche 718 Cayman 2.5 S: £54,980, 8,000 miles. Listed in full under best value.
- 2017 Porsche 718 Cayman 2.5 S: £35,990, 39,000 miles. Listed in full under best value.
- 2018 Porsche 718 Cayman 2.5 S: £34,980, 51,000 miles. Listed in full under best value.
- 2019 Porsche 718 Cayman 2.5 S: £46,999, 15,347 miles. Listed in full under lowest mileage.
- 2018 Porsche 718 Cayman 2.5 S: £47,850, 16,640 miles. Listed in full under best value.
- 2018 Porsche 718 Cayman 2.5 S: £48,990, 30,924 miles. Listed in full under lowest mileage.
- 2018 Porsche 718 Cayman 2.5 S: £38,980, 50,000 miles. Listed in full under best value.
- 2017 Porsche 718 Cayman 2.5 S: £39,950, 57,359 miles. Listed in full under cheapest.
- 2018 Porsche 718 Cayman 2.5 S: £48,999, 27,100 miles. Listed in full under lowest mileage.
- 2017 Porsche 718 Cayman 2.5 S: £49,990, 27,009 miles. Listed in full under lowest mileage.
Newly advertised Porsche 718 Cayman S: first seen by AskCar in the 7 days to 1 November 2026
These 3 are the most recently advertised. Cars first seen on the same day are listed cheapest first.
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, silver. Mileage: 41,000 miles. Price: £43,000, unchanged since AskCar first saw it on 31 October 2026, 1 day ago. Fair price: £221 (under 1%) over the AskCar estimate of £42,779. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 June 2027. Dealer: Rsj Sports Cars in Slough. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-21a5b259d348
- 2017 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, blue. Mileage: 38,500 miles. Price: £41,492, unchanged since AskCar first saw it on 30 October 2026, 2 days ago. Fair price: £124 (under 1%) over the AskCar estimate of £41,368. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 5 March 2027. Dealer: Country Car in Warwick. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2017-27428deb61fc
- 2018 Porsche 718 Cayman 2.5 S, 345 bhp, automatic, petrol, coupe, 2 doors, 2 seats, grey. Mileage: 40,920 miles. Price: £48,000, unchanged since AskCar first saw it on 30 October 2026, 2 days ago. Above the going rate: £5,201 (12%) over the AskCar estimate of £42,799. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 February 2027. Dealer: Sytner Group Porsche Centre Leicester in Leicester. AskCar page: https://askcar.co.uk/car/porsche-718-cayman-2018-774bc6aa5f97
Porsche 718 Cayman by gearbox, fuel and body
Porsche 718 Cayman prices by year
- 2025 (20 cars)
- 2024 (24 cars)
- 2023 (43 cars)
- 2022 (35 cars)
- 2021 (28 cars)
- 2020 (23 cars)
- 2019 (51 cars)
- 2018 (50 cars)
- 2017 (31 cars)
Porsche 718 Cayman by trim
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