2018 MINI Convertible 2.0 Cooper S 25th Anniversary

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 18,000 below the typical mileage for its age. Its asking price of £18,000 is £3,051 above the AskCar estimate of £14,949. The AskCar estimate uses 1,055 UK dealer adverts for the MINI Convertible, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 3 days ago, the asking price has dropped by £1,500. 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 6 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £3,051 (20%) over the AskCar estimate of £14,949.

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 1,055 priced MINI Convertible adverts across different ages and specifications, as of 6 November 2026.

A 2018 MINI Convertible with the 2.0 petrol engine is typically advertised at £13,800: the median of the 30 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2018 MINI Convertible advertised 3 days ago. About half of 2018 MINI Convertible cars are gone from sale within a month of being advertised: 56 of the 115 first advertised between 11 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £19,500. Its asking price is now £18,000, £1,500 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 3 November 2026: £19,500
• 5 November 2026: £18,000

Mileage and MOT

Advertised mileage is about 18,000 miles lower than the median mileage of a 2018 MINI Convertible on AskCar.

Similar cars

4 other 2018 MINI Convertible Cooper S 25TH Anniversary 2.0 petrol automatic convertibles are for sale at UK dealers, from £11,800 to £17,991, as of 6 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, £6,010 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: £11,800, £6,200 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: 30,276 miles. Price: £17,991, the same price as this car. Dealer: Vertu MINI York in York. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-79a755fe32ca