2018 MINI Convertible 1.5 Cooper

Price: £9,399. Fair price: £22 (under 1%) over the AskCar estimate of £9,377, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,035 priced MINI Convertible adverts on AskCar as of 2 November 2026.

AskCar lists 1,068 used MINI Convertible from 694 UK dealerships, as of 2 November 2026.

Overview

  • Make: MINI
  • Model: Convertible
  • Trim: Cooper
  • Version: 1.5 Cooper Manual FWD Euro 6 (s/s) 2dr (134 bhp)
  • Year: 2018
  • Mileage: 56,650 miles
  • Fuel: Petrol
  • Body: Convertible, 2 doors, 4 seats
  • Engine: 1.5 litres, 134 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 130 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 56,650 miles on the clock, this 2018 MINI Convertible Cooper has done roughly 13,400 more miles than a typical 2018 MINI Convertible. The AskCar estimate for this car is £9,377. It is priced at £9,399, which is £22 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,035 MINI Convertible cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 74 days, and its asking price has been cut by £1,100. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by cinch Corby in North Northamptonshire. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £22 (under 1%) over the AskCar estimate of £9,377.

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 1,035 priced MINI Convertible adverts across different ages and specifications, as of 2 November 2026.

A 2018 MINI Convertible with the 1.5 petrol engine is typically advertised at £10,000: the median of the 61 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2018 MINI Convertible has been on sale for at least 74 days, and its asking price has been cut by £1,100. About half of 2018 MINI Convertible cars are gone from sale within a month of being advertised: 52 of the 102 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 20 August 2026 at £10,499. Its asking price is now £9,399, £1,100 less. The latest price cut was seen on 13 October 2026.

Price changes recorded:

  • 20 August 2026: £10,499
  • 21 August 2026: £10,603
  • 1 September 2026: £10,067
  • 11 September 2026: £9,999
  • 30 September 2026: £9,899
  • 13 October 2026: £9,399

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 2 November 2026.

It has had 5 MOTs. The latest, on 3 November 2025, passed.

Advisories at the latest test: offside rear tyre slightly damaged/cracking or perishing cracking in tread outer edge; nearside front suspension arm pin or bush worn but not resulting in excessive movement lower arm rearmost bush starting to perish; offside front suspension arm pin or bush worn but not resulting in excessive movement lower arm rearmost bush starting to perish.

Mileage at that test: 50,502 miles, which matches the advertised 56,650 miles.

Advertised mileage is about 13,400 miles higher than the median mileage of a 2018 MINI Convertible on AskCar.

Similar cars

44 other 2018 MINI Convertible Cooper 1.5 petrol manual convertibles are for sale at UK dealers, from £5,995 to £12,995, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2018 MINI Convertible Cooper, 1.5 petrol convertible, blue. Mileage: 56,000 miles. Price: £9,795, £396 more than this car. Dealer: The Mini Shop Bristol in Yate. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-329bddeecb1b
  • 2018 MINI Convertible Cooper, 1.5 petrol convertible, blue. Mileage: 54,900 miles. Price: £8,290, £1,109 less than this car. Dealer: Drayton Car World in Hillingdon. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-dcc503a325e5
  • 2018 MINI Convertible Cooper, 1.5 petrol convertible, blue. Mileage: 53,059 miles. Price: £9,599, £200 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-1a51202b6030
  • The nearest: 2018 MINI Convertible Cooper, 1.5 petrol convertible, black, under a mile from this car. Mileage: 26,646 miles. Price: £11,499, £2,100 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-0aba3d0d163e

Browse all MINI Convertible cars for sale · 2018 MINI Convertible price guide

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Photos

27 photos of this car are on its AskCar page.

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.