2023 MINI Convertible 1.5

Price: £18,975. Fair price: £1,028 (5%) under the AskCar estimate of £20,003, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,051 priced MINI Convertible adverts on AskCar as of 12 November 2026.

AskCar lists 1,086 used MINI Convertible from 703 UK dealerships, as of 12 November 2026.

Overview

  • Make: MINI
  • Model: Convertible
  • Version: 1.5 Auto FWD Euro 6 2dr (134 bhp)
  • Year: 2023
  • Mileage: 18,806 miles
  • Fuel: Petrol
  • Body: Convertible, 2 doors, 4 seats
  • Engine: 1.5 litres, 134 bhp
  • Gearbox: Automatic
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 137 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 MINI Convertible is advertised with 18,806 miles on the clock. The dealer is asking £18,975, which is £1,028 below the AskCar estimate of £20,003. To work out the AskCar estimate, we analyse UK dealer adverts for 1,051 MINI Convertible cars across different ages and specifications. This car was first seen in our listings data 1 day ago. The seller is Listers Boston, based in Boston. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Listers Boston is rated 4.7 out of 5 on Google.

Price

Fair price: £1,028 (5%) under the AskCar estimate of £20,003.

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 1,051 priced MINI Convertible adverts across different ages and specifications, as of 12 November 2026.

A 2023 MINI Convertible with the 1.5 petrol engine is typically advertised at £19,300: the median of the 88 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2023 MINI Convertible advertised 1 day ago. About half of 2023 MINI Convertible cars are gone from sale within a month of being advertised: 119 of the 255 first advertised between 12 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £18,975. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 1,100 miles higher than the median mileage of a 2023 MINI Convertible on AskCar.

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

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Photos

22 photos of this car are on its AskCar page.

As of 12 November 2026, AskCar lists 596,362 cars and vans from 12,840 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.