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: 8,743 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BMW 4 Series M Sport has covered 8,743 miles. The dealer is asking £42,750, which is £4,963 above the AskCar estimate of £37,787. To work out the AskCar estimate, we analyse UK dealer adverts for 1,833 BMW 4 Series cars across different ages and specifications. Since we first spotted the advert 41 days ago, the asking price has dropped by £700. The seller is JKC BMW, based in Coleraine. 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: £4,963 (13%) over the AskCar estimate of £37,787.

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

This 2025 BMW 4 Series has been on sale for at least 41 days.

Price history

AskCar first saw this advert on 25 September 2026 at £43,450. Its asking price is now £42,750, £700 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 25 September 2026: £43,450
• 13 October 2026: £42,950
• 24 October 2026: £42,750

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 1,200 miles higher 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: 8,792 miles. Price: £41,950, £800 less than this car. Dealer: Group 1 Farnborough BMW in Farnborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-997b75ca2dfd
• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 8,380 miles. Price: £41,879, £871 less than this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-6a151cda6ec6
• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 8,294 miles. Price: £41,995, £755 less than this car. Dealer: Group 1 Hailsham BMW in Hailsham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-a17639eed5dd

• The nearest: 2025 BMW 4 Series M Sport, 2.0 petrol convertible, grey, 202 miles from this car. Mileage: 8,027 miles. Price: £40,999, £1,751 less than this car. Dealer: Halliwell Jones Chester BMW in Chester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-bce0ff9f3768