2018 MINI Convertible 2.0 Cooper S
Price: £14,250. Fair price: £444 (3%) over the AskCar estimate of £13,806, 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 S
- Version: 2.0 Cooper S Manual FWD Euro 6 (s/s) 2dr (189 bhp)
- Year: 2018
- Mileage: 16,491 miles
- Fuel: Petrol
- Body: Convertible, 2 doors, 4 seats
- Engine: 2.0 litres, 189 bhp
- Gearbox: Manual
- Drive: Front-wheel drive
- Colour: Black
- CO2: 157 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 MINI Convertible Cooper S has covered 16,491 miles, around 26,700 fewer miles than is typical for its age. Its asking price of £14,250 is £444 above the AskCar estimate of £13,806. The AskCar estimate draws on 1,035 MINI Convertible adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 29 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Berry Thames Ditton BYD, based in Thames Ditton. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £444 (3%) over the AskCar estimate of £13,806.
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 2.0 petrol engine is typically advertised at £13,700: the median of the 28 for sale on AskCar, as of 2 November 2026.
Time on sale
This 2018 MINI Convertible has been on sale for at least 29 days.
Price history
AskCar first saw this advert on 4 October 2026 at £14,250. Its asking price has not changed.
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 21 May 2027.
It has had 6 MOTs. The latest, on 14 May 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 15,688 miles, which matches the advertised 16,491 miles.
Advertised mileage is about 26,700 miles lower than the median mileage of a 2018 MINI Convertible on AskCar.
Similar cars
9 other 2018 MINI Convertible Cooper S 2.0 petrol manual convertibles are for sale at UK dealers, from £8,995 to £13,995, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2018 MINI Convertible Cooper S, 2.0 petrol convertible, white. Mileage: 22,514 miles. Price: £12,740, £1,510 less than this car. Dealer: One Stop Car Shop in Manchester. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-c9f8023daa1b
- 2018 MINI Convertible Cooper S, 2.0 petrol convertible, grey. Mileage: 23,471 miles. Price: £13,499, £751 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-286d8b8ab2ca
- 2018 MINI Convertible Cooper S, 2.0 petrol convertible, grey. Mileage: 28,425 miles. Price: £13,995, £255 less than this car. Dealer: Group 1 Automotive in Worthing. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-79bfe7258783
- The nearest: 2018 MINI Convertible Cooper S, 2.0 petrol convertible, silver, 20 miles from this car. Mileage: 48,651 miles. Price: £12,295, £1,955 less than this car. Dealer: Moorside Garage in Maidenhead. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-91690278ae92
Browse all MINI Convertible cars for sale · 2018 MINI Convertible price guide
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- Used MINI Convertible Cooper S prices
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Photos
28 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.