Used MINI Convertible for sale near Sleaford
There are 14 used MINI Convertible for sale from UK dealers within 20 miles of Sleaford on AskCar, as of 2 November 2026. Typical asking price £19,500 (the median: half cost less, half cost more). The cheapest is £3,990. AskCar lists 1,068 used MINI Convertible across the UK, from 694 dealerships.
The middle half of the 14 cars are priced between £14,400 and £22,500.
As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Sleaford
8 of the 14 MINI Convertible within 20 miles of Sleaford had their price reduced in the last 14 days to 2 November 2026. Each one's line in the list below says by how much.
Cars for sale now
Best value first: the cars priced furthest below their AskCar estimate come first, and those without one come after. The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,035 priced MINI Convertible adverts on AskCar as of 2 November 2026.
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, town and distance; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2024 MINI Convertible 2.0 John Cooper Works, 227 bhp, automatic, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 10,644 miles. Price: £25,975, unchanged since AskCar first saw it on 27 October 2026, 6 days ago. Fair price: £565 (2%) under the AskCar estimate of £26,540. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: MINI UK at Listers Boston in Boston, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2024-49c8e15fd147
- 2023 MINI Convertible 1.5, 134 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 18,806 miles. Price: £19,775, reduced by £2,200 from £21,975 since AskCar first saw it on 4 September 2026, 59 days ago. Fair price: £424 (2%) under the AskCar estimate of £20,199. Euro 6 emissions standard. ULEZ compliant. Dealer: Listers in Boston, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-fcacc4fcb392
- 2021 MINI Convertible 1.5 Cooper Classic, 134 bhp, manual, petrol, convertible, 2 doors, 4 seats, red. Mileage: 25,476 miles. Price: £14,275, reduced by £500 from £14,775 since AskCar first saw it on 11 September 2026, 52 days ago. Fair price: £185 (1%) under the AskCar estimate of £14,460. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 August 2027. Dealer: MINI UK at Listers Boston in Boston, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2021-544d06d0f29f
- 2021 MINI Convertible 1.5 Cooper Classic, 134 bhp, manual, petrol, convertible, 2 doors, 4 seats, red. Mileage: 25,477 miles. Price: £14,275, reduced by £500 from £14,775 since AskCar first saw it on 11 September 2026, 52 days ago. Fair price: £185 (1%) under the AskCar estimate of £14,460. Euro 6 emissions standard. ULEZ compliant. Dealer: Listers in Boston, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2021-68e41625745a
- 2024 MINI Convertible 2.0 John Cooper Works, 227 bhp, automatic, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 21,210 miles. Price: £24,790, reduced by £1,205 from £25,995 since AskCar first saw it on 25 September 2026, 38 days ago. Fair price: £252 (1%) under the AskCar estimate of £25,042. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Group 1 MINI Lincoln in Lincoln, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2024-59b120ef67ee
- 2023 MINI Convertible 1.5 Cooper Exclusive, 134 bhp, automatic, petrol, convertible, 2 doors, 4 seats, grey. Mileage: 26,401 miles. Price: £19,275, reduced by £1,700 from £20,975 since AskCar first saw it on 23 September 2026, 40 days ago. Fair price: £155 (under 1%) under the AskCar estimate of £19,430. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 March 2027. Dealer: MINI UK at Listers Boston in Boston, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-2cfcc7b1ac73
- 2017 MINI Convertible 2.0 John Cooper Works, 228 bhp, manual, petrol, convertible, 2 doors, 4 seats, black. Mileage: 22,129 miles. Price: £14,802, reduced by £8 from £14,810 since AskCar first saw it on 14 October 2026, 19 days ago. Fair price: £106 (under 1%) under the AskCar estimate of £14,908. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 21 October 2027. Dealer: Vertu Honda Lincoln in Lincoln, 18 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2017-119607a4d206
- 2014 MINI Convertible 1.6 Cooper, 120 bhp, manual, petrol, convertible, 2 doors, 4 seats, white. Mileage: 89,849 miles. Price: £3,990, unchanged since AskCar first saw it on 16 October 2026, 17 days ago. Fair price: £21 (under 1%) under the AskCar estimate of £4,011. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 January 2027. Dealer: Nicolson Motor Group in Lincoln, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2014-b70fc95be596
- 2024 MINI Convertible 2.0 John Cooper Works, 227 bhp, automatic, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 10,644 miles. Price: £25,975, unchanged since AskCar first saw it on 28 October 2026, 5 days ago. Fair price: £125 (under 1%) under the AskCar estimate of £26,100. Euro 6 emissions standard. ULEZ compliant. Dealer: Listers in Boston, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2024-ed6f6d088ce7
- 2024 MINI Convertible 1.5, 134 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 19,356 miles. Price: £21,475, reduced by £500 from £21,975 since AskCar first saw it on 11 September 2026, 52 days ago. Fair price: £590 (2%) over the AskCar estimate of £20,885. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Listers in Boston, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2024-96b86c732215
- 2023 MINI Convertible 2.0 Cooper S Exclusive, 176 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 16,301 miles. Price: £22,595, reduced by £400 from £22,995 since AskCar first saw it on 9 October 2026, 24 days ago. Fair price: £868 (3%) over the AskCar estimate of £21,727. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 15 September 2027. Dealer: Group 1 MINI Lincoln in Lincoln, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-bb4013b3b4b0
- 2024 MINI Convertible 1.5 Cooper Classic, 134 bhp, automatic, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 16,413 miles. Price: £19,790, reduced by £705 from £20,495 since AskCar first saw it on 3 October 2026, 30 days ago. Fair price: £769 (4%) over the AskCar estimate of £19,021. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Group 1 MINI Lincoln in Lincoln, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2024-8ac318a6363d
- 2023 MINI Convertible 1.5, 134 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 53,573 miles. Price: £16,990, reduced by £5 from £16,995 since AskCar first saw it on 22 October 2026, 11 days ago. Fair price: £716 (4%) over the AskCar estimate of £16,274. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 3 February 2027. Dealer: Group 1 MINI Lincoln in Lincoln, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-845df73b02f2
- 2019 MINI Convertible 1.5 Cooper Exclusive, 134 bhp, manual, petrol, convertible, 2 doors, 4 seats, black. Mileage: 41,171 miles. Price: £13,775, reduced by £200 from £13,975 since AskCar first saw it on 1 October 2026, 32 days ago. Above the going rate: £1,028 (8%) over the AskCar estimate of £12,747. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 December 2026. Dealer: Listers in Boston, 15 miles from Sleaford. AskCar page: https://askcar.co.uk/car/mini-convertible-2019-c2e426ebf396
MINI Convertible across the UK by price
- Under £3,000 (74 cars)
- Under £5,000 (169 cars)
- Under £8,000 (281 cars)
- Under £10,000 (384 cars)
- Under £15,000 (604 cars)
- Under £20,000 (867 cars)
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