2025 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2025
• Mileage: 4,316 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BMW 4 Series M Sport is advertised with 4,316 miles, approximately 3,300 below the typical mileage for its age. The AskCar estimate for this car is £39,186. It is priced at £40,999, which is £1,813 above that estimate. The AskCar estimate uses 1,825 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert today. The seller is Halliwell Jones Chester BMW, based in Chester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,813 (4%) over the AskCar estimate of £39,186.

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 1,825 priced BMW 4 Series adverts across different ages and specifications, as of 7 November 2026.

A 2025 BMW 4 Series with the 2.0 petrol engine is typically advertised at £37,500: the median of the 52 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2025 BMW 4 Series advertised today. About half of 2025 BMW 4 Series cars are gone from sale within a month of being advertised: 31 of the 62 first advertised between 13 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £40,999. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,300 miles lower than the median mileage of a 2025 BMW 4 Series on AskCar.

Similar cars

20 other 2025 BMW 4 Series M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £37,440 to £43,771, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 4,566 miles. Price: £41,450, £451 more than this car. Dealer: Cotswold Bmw Cheltenham in Cheltenham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-9c730537d843
• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 3,379 miles. Price: £41,949, £950 more than this car. Dealer: Ocean Plymouth in Plymouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-b535d856c2a2
• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 5,471 miles. Price: £43,771, £2,772 more than this car. Dealer: Berry Cobham BMW in Cobham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-f6d4beb87f9a

• The nearest: 2025 BMW 4 Series M Sport, 2.0 petrol convertible, grey, under a mile from this car. Mileage: 8,027 miles. Price: £40,999, the same price as this car. Dealer: Halliwell Jones Chester BMW in Chester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-bce0ff9f3768