2021 MINI Convertible 2.0 John Cooper Works

Overview

• Make: MINI
• Model: Convertible
• Trim: John Cooper Works
• Version: 2.0 John Cooper Works [Comfort/Nav Pack] Auto FWD Euro 6 2dr (227 bhp)
• Year: 2021
• Mileage: 35,701 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 227 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 MINI Convertible John Cooper Works is advertised with 35,701 miles, approximately 9,700 above the typical mileage for its age. Its asking price of £20,200 is £261 above the AskCar estimate of £19,939. To work out the AskCar estimate, we analyse UK dealer adverts for 1,035 MINI Convertible cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 151 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall Mini Grimsby, based in Grimsby. 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: £261 (1%) over the AskCar estimate of £19,939.

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 2021 MINI Convertible with the 2.0 petrol engine is typically advertised at £18,400: the median of the 32 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 MINI Convertible has been on sale for at least 151 days. About half of 2021 MINI Convertible cars are gone from sale within a month of being advertised: 55 of the 103 first advertised between 13 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 4 June 2026 at £19,843. Its asking price is now £20,200, £357 more.

Price changes recorded:

• 4 June 2026: £19,843
• 8 June 2026: £20,498
• 18 June 2026: £19,998
• 22 June 2026: £19,798
• 25 June 2026: £19,498
• 30 June 2026: £19,748
• 4 July 2026: £20,495
• 10 July 2026: £19,998
• 11 July 2026: £20,095
• 30 July 2026: £20,498
• 14 August 2026: £20,100
• 22 August 2026: £19,900
• 27 August 2026: £19,800
• 4 September 2026: £19,600
• 11 September 2026: £19,400
• 25 September 2026: £20,800
• 1 October 2026: £21,200
• 9 October 2026: £20,600
• 16 October 2026: £20,500
• 23 October 2026: £20,400
• 30 October 2026: £20,200

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 9 February 2027.

It failed its MOT on 2 February 2026 (nearside front road wheel fractured; nearside front tyre has a bulge, caused by separation or partial failure of its structure; nearside rear tyre has a bulge, caused by separation or partial failure of its structure; and 1 more) and passed 8 days later, on 10 February 2026.

There were no advisories at the latest test.

Mileage at that test: 34,364 miles, which matches the advertised 35,701 miles.

Advertised mileage is about 9,700 miles higher than the median mileage of a 2021 MINI Convertible on AskCar.

Similar cars

4 other 2021 MINI Convertible John Cooper Works 2.0 petrol automatic convertibles are for sale at UK dealers, from £18,999 to £23,000, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 MINI Convertible John Cooper Works, 2.0 petrol convertible, green. Mileage: 30,152 miles. Price: £21,390, £1,190 more than this car. Dealer: Stratstone Mini Doncaster in Doncaster. AskCar page: https://askcar.co.uk/car/mini-convertible-2021-4b17f5c7f817
• 2021 MINI Convertible John Cooper Works, 2.0 petrol convertible, black. Mileage: 29,127 miles. Price: £21,000, £800 more than this car. Dealer: Aspi Specialist Cars in Stratford-upon-Avon. AskCar page: https://askcar.co.uk/car/mini-convertible-2021-d52c9044cfe7
• 2021 MINI Convertible John Cooper Works, 2.0 petrol convertible, blue. Mileage: 20,727 miles. Price: £23,000, £2,800 more than this car. Dealer: Sytner Sunningdale MINI in Bracknell. AskCar page: https://askcar.co.uk/car/mini-convertible-2021-85d0c46c17b6