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: 23,500 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 1.5 litres, 134 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 130 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 23,500 miles on the clock, this 2018 MINI Convertible Cooper has done roughly 19,700 fewer miles than a typical 2018 MINI Convertible. The AskCar estimate for this car is £11,573. It is priced at £12,200, which is £627 above that estimate. The AskCar estimate uses 1,035 UK dealer adverts for the MINI Convertible, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 31 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall MINI Bournemouth, based in Bournemouth. 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: £627 (5%) over the AskCar estimate of £11,573.

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

This 2018 MINI Convertible has been on sale for at least 31 days.

Price history

AskCar first saw this advert on 2 October 2026 at £12,700. Its asking price is now £12,200, £500 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 2 October 2026: £12,700
• 9 October 2026: £12,800
• 16 October 2026: £12,600
• 23 October 2026: £12,700
• 27 October 2026: £12,400
• 30 October 2026: £12,200

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 7 November 2026.

It has had 6 MOTs. The latest, on 2 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 23,488 miles, which matches the advertised 23,500 miles.

Advertised mileage is about 19,700 miles lower 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, red. Mileage: 23,360 miles. Price: £11,299, £901 less than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-ba87796d3406
• 2018 MINI Convertible Cooper, 1.5 petrol convertible, blue. Mileage: 24,503 miles. Price: £9,999, £2,201 less than this car. Dealer: Grange Corvette Birmingham in Coventry. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-7eb14f09796c
• 2018 MINI Convertible Cooper, 1.5 petrol convertible, black. Mileage: 26,646 miles. Price: £11,499, £701 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-0aba3d0d163e

• The nearest: 2018 MINI Convertible Cooper, 1.5 petrol convertible, white, 2 miles from this car. Mileage: 49,806 miles. Price: £8,700, £3,500 less than this car. Dealer: Foray Motor Group English Ford in Poole. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-63bdf5469044