2018 MINI Convertible 1.5 Cooper

Overview

• Make: MINI
• Model: Convertible
• Trim: Cooper
• Version: 1.5 Cooper Manual FWD Euro 6 (s/s) 2dr (134 bhp)
• Year: 2018
• Mileage: 57,857 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 1.5 litres, 134 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: White
• CO2: 114 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 57,857 miles, this 2018 MINI Convertible Cooper has covered about 13,700 more miles than other 2018 MINI Convertible cars. The dealer is asking £10,750, which is £1,428 above the AskCar estimate of £9,322. To work out the AskCar estimate, we analyse UK dealer adverts for 1,049 MINI Convertible cars across different ages and specifications. This car was first seen in our listings data today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Sunningdale MINI, based in Sunningdale. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,428 (15%) over the AskCar estimate of £9,322.

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 1,049 priced MINI Convertible adverts across different ages and specifications, as of 5 November 2026.

A 2018 MINI Convertible with the 1.5 petrol engine is typically advertised at £10,000: the median of the 64 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2018 MINI Convertible advertised today. About half of 2018 MINI Convertible cars are gone from sale within a month of being advertised: 56 of the 114 first advertised between 11 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £10,750. 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 5 November 2026: valid until 25 August 2027.

It failed its MOT on 20 August 2026 (nearside headlamp aim too high; offside headlamp aim too high; front windscreen wiper does not clear the windscreen effectively) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 57,242 miles, which matches the advertised 57,857 miles.

Advertised mileage is about 13,700 miles higher than the median mileage of a 2018 MINI Convertible on AskCar.

Similar cars

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

The 3 closest to this car in mileage:

• 2018 MINI Convertible Cooper, 1.5 petrol convertible, grey. Mileage: 57,293 miles. Price: £9,995, £755 less than this car. Dealer: Botley Car Centre in Southampton. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-7e48d91174b0
• 2018 MINI Convertible Cooper, 1.5 petrol convertible, black. Mileage: 56,650 miles. Price: £9,299, £1,451 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-459af882f98a
• 2018 MINI Convertible Cooper, 1.5 petrol convertible, blue. Mileage: 56,000 miles. Price: £8,995, £1,755 less than this car. Dealer: The Mini Shop Bristol in Yate. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-329bddeecb1b

• The nearest: 2018 MINI Convertible Cooper, 1.5 petrol convertible, black, 4 miles from this car. Mileage: 50,835 miles. Price: £9,450, £1,300 less than this car. Dealer: Chequers Cars Chobham in Woking. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-f387f4d9e3f5