2023 MINI Convertible 2.0 Cooper S Seaside Edition

Price: £21,795. Fair price: £382 (1%) over the AskCar estimate of £21,413, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,035 priced MINI Convertible adverts on AskCar as of 2 November 2026.

AskCar lists 1,068 used MINI Convertible from 694 UK dealerships, as of 2 November 2026.

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: 30,501 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

With 30,501 miles on the clock, this 2023 MINI Convertible Cooper S Seaside Edition has done roughly 12,500 more miles than a typical 2023 MINI Convertible. The dealer is asking £21,795, which is £382 above the AskCar estimate of £21,413. To work out the AskCar estimate, we analyse UK dealer adverts for 1,035 MINI Convertible cars across different ages and specifications. Since we first spotted the advert 65 days ago, the asking price has dropped by £2,080. The government's MOT record matches its advertised mileage. You can find this car at Group 1 Automotive in Littlehampton. 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: £382 (1%) over the AskCar estimate of £21,413.

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

This 2023 MINI Convertible has been on sale for at least 65 days.

Price history

AskCar first saw this advert on 29 August 2026 at £23,875. Its asking price is now £21,795, £2,080 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

  • 29 August 2026: £23,875
  • 18 September 2026: £23,675
  • 7 October 2026: £23,475
  • 14 October 2026: £22,995
  • 21 October 2026: £22,295
  • 24 October 2026: £21,995
  • 29 October 2026: £21,795

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 15 June 2027.

It failed its MOT on 10 June 2026 (nearside front windscreen wiper blade defective starting to split; offside front windscreen wiper blade defective starting to split; nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords outer sidewall) and passed 1 day later, on 11 June 2026.

There were no advisories at the latest test.

Mileage at that test: 28,958 miles, which matches the advertised 30,501 miles.

Advertised mileage is about 12,500 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 £19,699 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, blue. Mileage: 32,787 miles. Price: £19,699, £2,096 less than this car. Dealer: Fords of Winsford Manchester in Manchester. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-f0932f00795e
  • 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, blue. Mileage: 26,733 miles. Price: £22,250, £455 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: 34,624 miles. Price: £21,790, the same price as this car. Dealer: Stratstone Mini Hull in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-0ae816e4fed5
  • The nearest: 2023 MINI Convertible Cooper S Seaside Edition, 2.0 petrol convertible, green, 40 miles from this car. Mileage: 9,898 miles. Price: £22,995, £1,200 more than this car. Dealer: Berry Thames Ditton BYD in Thames Ditton. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-049ffdb78368

Browse all MINI Convertible cars for sale · 2023 MINI Convertible price guide

More like this

Photos

41 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.