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: 30,300 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 1.5 litres, 134 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 130 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 MINI Convertible Cooper has covered 30,300 miles, around 12,900 fewer miles than is typical for its age. The dealer is asking £10,850, which is £295 below the AskCar estimate of £11,145. To work out the AskCar estimate, we analyse UK dealer adverts for 1,035 MINI Convertible cars across different ages and specifications. We first saw this car advertised 43 days ago. Its asking price has since fallen by £400. We checked its advertised mileage against the government's MOT record, and they match. The seller is Pentagon Oldham, based in Oldham. 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: £295 (2%) under the AskCar estimate of £11,145.

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 43 days.

Price history

AskCar first saw this advert on 20 September 2026 at £11,250. Its asking price is now £10,850, £400 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 20 September 2026: £11,250
• 23 September 2026: £11,240
• 3 October 2026: £11,250
• 7 October 2026: £10,950
• 17 October 2026: £10,750
• 21 October 2026: £10,795
• 27 October 2026: £10,950
• 1 November 2026: £10,850

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 April 2027.

It has had 6 MOTs. The latest, on 20 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 29,492 miles, which matches the advertised 30,300 miles.

Advertised mileage is about 12,900 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, silver. Mileage: 30,525 miles. Price: £9,750, £1,100 less than this car. Dealer: James Nutt Cars in Redditch. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-438a0d1f3b11
• 2018 MINI Convertible Cooper, 1.5 petrol convertible, white. Mileage: 30,000 miles. Price: £10,995, £145 more than this car. Dealer: Maidstone Auto Centre in Maidstone. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-2b44b3c4301f
• 2018 MINI Convertible Cooper, 1.5 petrol convertible, blue. Mileage: 30,000 miles. Price: £11,795, £945 more than this car. Dealer: Harts Of Honiton in Honiton. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-4f7fde45e009

• The nearest: 2018 MINI Convertible Cooper, 1.5 petrol convertible, red, 29 miles from this car. Mileage: 23,360 miles. Price: £11,299, £449 more than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-ba87796d3406