2025 BMW 4 Series 2.0 420i M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420i M Sport [Tech/Pro Pack] Auto RWD Euro 6 2dr Step (181 bhp)
• Year: 2025
• Mileage: 7,315 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 154 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 BMW 4 Series M Sport has covered 7,315 miles. Priced at £42,000, it is advertised £3,612 above the AskCar estimate of £38,388. The AskCar estimate uses UK dealer asking prices, including 1,826 BMW 4 Series adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 57 days ago, the asking price has dropped by £2,750. The seller is Sytner Luton BMW, based in Luton. 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: £3,612 (9%) over the AskCar estimate of £38,388.

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 1,826 priced BMW 4 Series adverts across different ages and specifications, as of 6 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 6 November 2026.

Time on sale

This 2025 BMW 4 Series has been on sale for at least 57 days.

Price history

AskCar first saw this advert on 10 September 2026 at £44,750. Its asking price is now £42,000, £2,750 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 10 September 2026: £44,750
• 26 September 2026: £44,500
• 10 October 2026: £44,250
• 17 October 2026: £43,850
• 24 October 2026: £43,490
• 30 October 2026: £42,000

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 200 miles lower than the median mileage of a 2025 BMW 4 Series on AskCar.

Similar cars

19 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 6 November 2026.

The 3 closest to this car in mileage:

• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 7,506 miles. Price: £41,495, £505 less than this car. Dealer: Group 1 Hailsham BMW in Hailsham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-0a1ead7b831b
• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 7,590 miles. Price: £39,400, £2,600 less than this car. Dealer: Berry Heathrow in Heathrow. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-6ad514314b1b
• 2025 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 6,857 miles. Price: £42,745, £745 more than this car. Dealer: Group 1 Borehamwood BMW in Borehamwood. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-a8a408ba578a