2023 MINI Convertible 2.0 Cooper S Seaside Edition

Overview

• Make: MINI
• Model: Convertible
• Trim: Cooper S Seaside Edition
• Version: 2.0 Cooper S Seaside Edition Auto FWD Euro 6 2dr (175 bhp)
• Year: 2023
• Mileage: 23,628 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 175 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 141 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 MINI Convertible Cooper S Seaside Edition has covered 23,628 miles, around 5,900 more miles than is typical for its age. Priced at £21,095, it is advertised £627 below the AskCar estimate of £21,722. The AskCar estimate uses 1,040 UK dealer adverts for the MINI Convertible, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 66 days ago. Its asking price has since fallen by £2,900. We checked its advertised mileage against the government's MOT record, and they match. The seller is Group 1 Chelmsford MINI, based in Chelmsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £627 (2%) under the AskCar estimate of £21,722.

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 1,040 priced MINI Convertible adverts across different ages and specifications, as of 9 November 2026.

A 2023 MINI Convertible with the 2.0 petrol engine is typically advertised at £22,400: the median of the 93 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2023 MINI Convertible has been on sale for at least 66 days.

Price history

AskCar first saw this advert on 4 September 2026 at £23,995. Its asking price is now £21,095, £2,900 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 4 September 2026: £23,995
• 16 September 2026: £23,850
• 22 September 2026: £23,849
• 27 September 2026: £23,695
• 3 October 2026: £23,495
• 20 October 2026: £22,895
• 4 November 2026: £22,650
• 7 November 2026: £21,095

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 7 June 2027.

It failed its MOT on 13 May 2026 (front headlamp aim too high) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 20,476 miles, which matches the advertised 23,628 miles.

Advertised mileage is about 5,900 miles higher than the median mileage of a 2023 MINI Convertible on AskCar.

Similar cars

12 other 2023 MINI Convertible Cooper S Seaside Edition 2.0 petrol automatic convertibles are for sale at UK dealers, from £19,399 to £23,950, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, blue. Mileage: 26,733 miles. Price: £21,950, £855 more than this car. Dealer: Cotswold MINI Hereford in Hereford. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-85f0c668b743
• 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, blue. Mileage: 19,380 miles. Price: £23,950, £2,855 more than this car. Dealer: Group 1 Southend MINI in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-317e8a8feab7
• 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, blue. Mileage: 18,375 miles. Price: £21,995, £900 more than this car. Dealer: Douglas Park Edinburgh in Edinburgh. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-4c258021a046