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: 9,973 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 is advertised with 9,973 miles, approximately 8,100 below the typical mileage for its age. The AskCar estimate for this car is £23,989. It is priced at £23,700, which is £289 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,035 MINI Convertible cars across different ages and specifications. We have tracked this advert for 4 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall BYD Maidstone, based in Maidstone. 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: £289 (1%) under the AskCar estimate of £23,989.

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 2023 MINI Convertible with the 2.0 petrol engine is typically advertised at £22,500: the median of the 103 for sale on AskCar, as of 2 November 2026.

Time on sale

AskCar first saw this 2023 MINI Convertible advertised 4 days ago. About half of 2023 MINI Convertible cars are gone from sale within a month of being advertised: 111 of the 229 first advertised between 10 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 29 October 2026 at £23,700. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 18 June 2027.

It has had one MOT, on 20 May 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 5,388 miles, which matches the advertised 9,973 miles.

Advertised mileage is about 8,100 miles lower 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 £19,699 to £24,250, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, green. Mileage: 9,898 miles. Price: £22,995, £705 less than this car. Dealer: Berry Thames Ditton BYD in Thames Ditton. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-049ffdb78368
• 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, blue. Mileage: 10,314 miles. Price: £23,244, £456 less than this car. Dealer: Williams Mini Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-25b820127b54
• 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, blue. Mileage: 8,550 miles. Price: £23,495, £205 less than this car. Dealer: V12 Sports & Classics Ltd -Worksop in Worksop. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-b26c3456f2e6

• The nearest: 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, blue, 23 miles from this car. Mileage: 19,380 miles. Price: £24,250, £550 more than this car. Dealer: Group 1 Southend MINI in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-317e8a8feab7