2020 MINI Convertible 2.0 Cooper S Sidewalk Edition

Overview

• Make: MINI
• Model: Convertible
• Trim: Cooper S Sidewalk Edition
• Version: 2.0 Cooper S Sidewalk Edition Steptronic FWD Euro 6 (s/s) 2dr (189 bhp)
• Year: 2020
• Mileage: 26,550 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 189 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 149 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2020 MINI Convertible Cooper S Sidewalk Edition is 26,550 miles. Its asking price of £19,590 is £1,324 above the AskCar estimate of £18,266. The AskCar estimate uses UK dealer asking prices, including 1,037 MINI Convertible adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 29 days ago. Its asking price has since fallen by £300. We checked its advertised mileage against the government's MOT record, and they match. The seller is Stratstone MINI Bury St Edmunds, based in Bury St Edmunds. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,324 (7%) over the AskCar estimate of £18,266.

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 1,037 priced MINI Convertible adverts across different ages and specifications, as of 4 November 2026.

A 2020 MINI Convertible with the 2.0 petrol engine is typically advertised at £17,100: the median of the 32 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2020 MINI Convertible has been on sale for at least 29 days.

Price history

AskCar first saw this advert on 6 October 2026 at £19,890. Its asking price is now £19,590, £300 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 6 October 2026: £19,890
• 15 October 2026: £19,790
• 16 October 2026: £19,780
• 27 October 2026: £19,590

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 14 August 2027.

It has had 5 MOTs. The latest, on 22 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 26,509 miles, which matches the advertised 26,550 miles.

Advertised mileage is about 1,800 miles lower than the median mileage of a 2020 MINI Convertible on AskCar.

Similar cars

3 other 2020 MINI Convertible Cooper S Sidewalk Edition 2.0 petrol automatic convertibles are for sale at UK dealers, from £15,999 to £18,688, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2020 MINI Convertible Cooper S Sidewalk Edition, 2.0 petrol convertible, blue. Mileage: 30,000 miles. Price: £18,000, £1,590 less than this car. Dealer: Sytner Cardiff MINI in Cardiff. AskCar page: https://askcar.co.uk/car/mini-convertible-2020-41dc3255958a
• 2020 MINI Convertible Cooper S Sidewalk Edition, 2.0 petrol convertible, blue. Mileage: 23,000 miles. Price: £18,688, £902 less than this car. Dealer: West Kent Motor Group Online in Sevenoaks. AskCar page: https://askcar.co.uk/car/mini-convertible-2020-496b55110d6a
• 2020 MINI Convertible Cooper S Sidewalk Edition, 2.0 petrol convertible, blue. Mileage: 37,662 miles. Price: £15,999, £3,591 less than this car. Dealer: Available Car Supermarket - Castle Donington in Castle Donington. AskCar page: https://askcar.co.uk/car/mini-convertible-2020-f6221d6ab1f0