2026 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: 2026
• Mileage: 3,615 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2026 BMW 4 Series M Sport is 3,615 miles. Its asking price of £43,999 is £1,970 above the AskCar estimate of £42,029. To work out the AskCar estimate, we analyse UK dealer adverts for 1,833 BMW 4 Series cars across different ages and specifications. We first saw this car advertised 46 days ago. Its asking price has since fallen by £3,000. 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 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,970 (4%) over the AskCar estimate of £42,029.

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 2026 BMW 4 Series with the 2.0 petrol engine is typically advertised at £41,100: the median of the 66 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2026 BMW 4 Series has been on sale for at least 46 days.

Price history

AskCar first saw this advert on 20 September 2026 at £46,999. Its asking price is now £43,999, £3,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 20 September 2026: £46,999
• 23 September 2026: £45,999
• 13 October 2026: £45,399
• 24 October 2026: £44,999
• 27 October 2026: £44,399
• 4 November 2026: £43,999

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 400 miles lower than the median mileage of a 2026 BMW 4 Series on AskCar.

Similar cars

17 other 2026 BMW 4 Series M Sport 2.0 petrol automatic convertibles are for sale at UK dealers, from £40,000 to £48,465, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2026 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 3,931 miles. Price: £43,000, £999 less than this car. Dealer: Sytner Chigwell BMW in Chigwell. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-a88dc37047af
• 2026 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 2,953 miles. Price: £48,465, £4,466 more than this car. Dealer: Berry Croydon BMW in Croydon. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-ef16922d18ee
• 2026 BMW 4 Series M Sport, 2.0 petrol convertible, black. Mileage: 2,877 miles. Price: £44,671, £672 more than this car. Dealer: Berry Chiswick BMW in Ealing. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-817f119b1ab3

• The nearest: 2026 BMW 4 Series M Sport, 2.0 petrol convertible, grey, 57 miles from this car. Mileage: 10,796 miles. Price: £40,000, £3,999 less than this car. Dealer: Sandal BMW Huddersfield in Huddersfield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-d96e19f06312