2018 MINI Convertible 2.0 Cooper S 25th Anniversary
Price: £19,500. Above the going rate: £4,712 (31%) over the AskCar estimate of £14,788, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,037 priced MINI Convertible adverts on AskCar as of 4 November 2026.
AskCar lists 1,067 used MINI Convertible from 690 UK dealerships, as of 4 November 2026.
Overview
- Make: MINI
- Model: Convertible
- Trim: Cooper S 25TH Anniversary
- Version: 2.0 Cooper S 25TH Anniversary Steptronic FWD Euro 6 (s/s) 2dr (189 bhp)
- Year: 2018
- Mileage: 25,411 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: 126 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 MINI Convertible Cooper S 25Th Anniversary is advertised with 25,411 miles, approximately 18,600 below the typical mileage for its age. Its asking price of £19,500 is £4,712 above the AskCar estimate of £14,788. The AskCar estimate uses 1,037 UK dealer adverts for the MINI Convertible, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 1 day ago. The seller is Sytner Newport MINI, based in Newport. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Above the going rate: £4,712 (31%) over the AskCar estimate of £14,788.
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 2018 MINI Convertible with the 2.0 petrol engine is typically advertised at £13,500: the median of the 28 for sale on AskCar, as of 4 November 2026.
Time on sale
AskCar first saw this 2018 MINI Convertible advertised 1 day ago. About half of 2018 MINI Convertible cars are gone from sale within a month of being advertised: 55 of the 110 first advertised between 11 July 2026 and 1 October 2026.
Price history
AskCar first saw this advert on 3 November 2026 at £19,500. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 18,600 miles lower than the median mileage of a 2018 MINI Convertible on AskCar.
Similar cars
3 other 2018 MINI Convertible Cooper S 25TH Anniversary 2.0 petrol automatic convertibles are for sale at UK dealers, from £11,990 to £15,490, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2018 MINI Convertible Cooper S 25TH Anniversary, 2.0 petrol convertible, blue. Mileage: 27,586 miles. Price: £11,990, £7,510 less than this car. Dealer: Berkeley Motor Group in Greenford. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-bd8c8d806f97
- 2018 MINI Convertible Cooper S 25TH Anniversary, 2.0 petrol convertible, blue. Mileage: 29,727 miles. Price: £12,900, £6,600 less than this car. Dealer: Sytner Select Bristol in Bristol. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-c40d50532032
- 2018 MINI Convertible Cooper S 25TH Anniversary, 2.0 petrol convertible, blue. Mileage: 10,000 miles. Price: £15,490, £4,010 less than this car. Dealer: Hut Green Garage in Eggborough. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-4e94bf2a96a4
Browse all MINI Convertible cars for sale · 2018 MINI Convertible price guide
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As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.