2018 MINI Convertible 2.0 Cooper S

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: 39,000 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 189 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 39,000 miles on the clock, this 2018 MINI Convertible Cooper S has done roughly 4,200 fewer miles than a typical 2018 MINI Convertible. Its asking price of £11,382 is £701 below the AskCar estimate of £12,083. The AskCar estimate uses UK dealer asking prices, including 1,035 MINI Convertible adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 54 days. Its advertised mileage matches the government's MOT record. The seller is Strattons, based in Solihull. 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: £701 (5%) under the AskCar estimate of £12,083.

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 54 days.

Price history

AskCar first saw this advert on 9 September 2026 at £11,382. 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 26 February 2027.

It failed its MOT on 17 February 2026 (offside windscreen washer provides insufficient washer liquid) and passed later the same day.

Advisories at the latest test: offside front tyre worn close to legal limit/worn on edge; nearside rear tyre worn close to legal limit/worn on edge; rear brake pad(s) wearing thin.

Mileage at that test: 37,715 miles, which matches the advertised 39,000 miles.

Advertised mileage is about 4,200 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 £14,250, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 MINI Convertible Cooper S, 2.0 petrol convertible, white. Mileage: 37,497 miles. Price: £11,560, £178 more than this car. Dealer: Big Motoring World Norwich in Norwich. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-15f675d6b4f4
• 2018 MINI Convertible Cooper S, 2.0 petrol convertible, silver. Mileage: 48,651 miles. Price: £12,295, £913 more than this car. Dealer: Moorside Garage in Maidenhead. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-91690278ae92
• 2018 MINI Convertible Cooper S, 2.0 petrol convertible, grey. Mileage: 28,425 miles. Price: £13,995, £2,613 more 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, grey, 51 miles from this car. Mileage: 71,459 miles. Price: £8,999, £2,383 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-1ef5e2b2a479