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: 4,957 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2026 BMW 4 Series M Sport is advertised with 4,957 miles on the clock. The dealer is asking £46,500, which is £4,803 above the AskCar estimate of £41,697. To work out the AskCar estimate, we analyse UK dealer adverts for 1,825 BMW 4 Series cars across different ages and specifications. Since we first spotted the advert 66 days ago, the asking price has dropped by £3,000. The seller is Sytner High Wycombe BMW, based in High Wycombe. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £4,803 (11%) over the AskCar estimate of £41,697.

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 1,825 priced BMW 4 Series adverts across different ages and specifications, as of 7 November 2026.

A 2026 BMW 4 Series with the 2.0 petrol engine is typically advertised at £41,000: the median of the 68 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2026 BMW 4 Series has been on sale for at least 66 days.

Price history

AskCar first saw this advert on 2 September 2026 at £49,500. Its asking price is now £46,500, £3,000 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 2 September 2026: £49,500
• 20 September 2026: £48,500
• 6 October 2026: £48,000
• 13 October 2026: £47,500
• 27 October 2026: £47,000
• 3 November 2026: £46,500

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 700 miles higher than the median mileage of a 2026 BMW 4 Series on AskCar.

Similar cars

16 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 7 November 2026.

The 3 closest to this car in mileage:

• 2026 BMW 4 Series M Sport, 2.0 petrol convertible, grey. Mileage: 5,030 miles. Price: £42,400, £4,100 less than this car. Dealer: Marshall BMW Bournemouth in Bournemouth. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-8c0192b07e79
• 2026 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 5,229 miles. Price: £42,450, £4,050 less than this car. Dealer: Sytner Worcester BMW in Worcester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-ac8f5aa3e2d0
• 2026 BMW 4 Series M Sport, 2.0 petrol convertible, blue. Mileage: 4,683 miles. Price: £46,490, the same price as this car. Dealer: Lloyd Motor Group in Reading. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-66c1cfec54db