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: 6,145 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

The advertised mileage for this 2025 BMW 4 Series M Sport is 6,145 miles. Its asking price of £39,000 is £320 above the AskCar estimate of £38,680. The AskCar estimate uses UK dealer asking prices, including 1,833 BMW 4 Series adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 29 days ago, the asking price has dropped by £1,000. The seller is MB Brent Park, based in London. 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

Fair price: £320 (under 1%) over the AskCar estimate of £38,680.

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 29 days.

Price history

AskCar first saw this advert on 7 October 2026 at £40,000. Its asking price is now £39,000, £1,000 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 7 October 2026: £40,000
• 3 November 2026: £39,000

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 1,400 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, black. Mileage: 6,137 miles. Price: £43,490, £4,490 more than this car. Dealer: Barretts BMW Canterbury in Canterbury. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-b8ce3a15661a
• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, white. Mileage: 5,685 miles. Price: £39,995, £995 more than this car. Dealer: E G Automotives in East Grinstead. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-9e30c1306769
• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 5,640 miles. Price: £41,450, £2,450 more than this car. Dealer: Cotswold Bmw Cheltenham in Cheltenham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-7a219f584c62

• The nearest: 2025 BMW 4 Series M Sport, 2.0 petrol convertible, grey, 6 miles from this car. Mileage: 9,573 miles. Price: £41,671, £2,671 more than this car. Dealer: Berry Chiswick BMW in Ealing. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-53a09ddb04d1