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: 3,791 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Green
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BMW 4 Series M Sport is advertised with 3,791 miles, approximately 3,700 below the typical mileage for its age. Priced at £42,498, it is advertised £3,246 above the AskCar estimate of £39,252. The AskCar estimate uses 1,833 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 6 days. The seller is Ocean Plymouth, based in Plymouth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £3,246 (8%) over the AskCar estimate of £39,252.

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 1,833 priced BMW 4 Series adverts across different ages and specifications, as of 5 November 2026.

A 2025 BMW 4 Series with the 2.0 petrol engine is typically advertised at £37,500: the median of the 51 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2025 BMW 4 Series advertised 6 days ago. About half of 2025 BMW 4 Series cars are gone from sale within a month of being advertised: 31 of the 59 first advertised between 13 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £42,498. Its asking price has not changed.

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 3,700 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 5 November 2026.

The 3 closest to this car in mileage:

• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 3,379 miles. Price: £41,949, £549 less 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, blue. Mileage: 4,566 miles. Price: £41,450, £1,048 less 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: 5,471 miles. Price: £43,771, £1,273 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, white, under a mile from this car. Mileage: 9,519 miles. Price: £39,979, £2,519 less than this car. Dealer: Ocean Plymouth in Plymouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-a9bb2cfa22a6