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 2dr Step (181 bhp)
• Year: 2026
• Mileage: 4,370 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 154 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BMW 4 Series M Sport has covered 4,370 miles. Priced at £44,495, it is advertised £4,059 above the AskCar estimate of £40,436. 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 81 days ago, the asking price has dropped by £2,000. The seller is Stratstone BMW Milton Keynes, based in Milton Keynes. 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: £4,059 (10%) over the AskCar estimate of £40,436.

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 81 days.

Price history

AskCar first saw this advert on 16 August 2026 at £46,495. Its asking price is now £44,495, £2,000 less. The latest price cut was seen on 8 October 2026.

Price changes recorded:

• 16 August 2026: £46,495
• 22 August 2026: £45,998
• 6 September 2026: £44,995
• 8 October 2026: £44,495

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 400 miles higher 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: 4,394 miles. Price: £44,375, £120 less than this car. Dealer: Hedin Automotive Woolwich BMW in Woolwich. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-782cc3792bb6
• 2026 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 4,683 miles. Price: £46,490, £1,995 more than this car. Dealer: Lloyd Motor Group in Reading. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-66c1cfec54db
• 2026 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 4,683 miles. Price: £46,490, £1,995 more than this car. Dealer: Lloyd North Tyneside BMW in Tynemouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-8cb07edd50a1

• The nearest: 2026 BMW 4 Series M Sport, 2.0 petrol convertible, white, 15 miles from this car. Mileage: 8,397 miles. Price: £45,950, £1,455 more than this car. Dealer: Sytner Luton BMW in Luton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-23d6b78be873