2021 BMW 4 Series 2.0 420i M Sport PRO Edition

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport PRO Edition
• Version: 2.0 420i M Sport Pro Edition Auto RWD Euro 6 (s/s) 2dr (181 bhp)
• Year: 2021
• Mileage: 51,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport Pro Edition has covered 51,000 miles, around 6,900 more miles than is typical for its age. The dealer is asking £26,350, which is £1,578 above the AskCar estimate of £24,772. 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 recorded this advert 111 days ago, and its asking price has since fallen by £500. Its advertised mileage matches the government's MOT record. The seller is Keith Motors (Christchurch), based in Christchurch. 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: £1,578 (6%) over the AskCar estimate of £24,772.

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 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £24,000: the median of the 149 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 111 days.

Price history

AskCar first saw this advert on 17 July 2026 at £26,850. Its asking price is now £26,350, £500 less. The latest price cut was seen on 5 September 2026.

Price changes recorded:

• 17 July 2026: £26,850
• 5 September 2026: £26,350

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 25 June 2027.

It has had 3 MOTs. The latest, on 23 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 50,470 miles, which matches the advertised 51,000 miles.

Advertised mileage is about 6,900 miles higher than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

7 other 2021 BMW 4 Series M Sport PRO Edition 2.0 petrol automatic coupes are for sale at UK dealers, from £24,490 to £29,290, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport PRO Edition, 2.0 petrol coupe, grey. Mileage: 50,000 miles. Price: £24,490, £1,860 less than this car. Dealer: Bedford Car Centres in Bedford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-48443db7b5e5
• 2021 BMW 4 Series M Sport PRO Edition, 2.0 petrol coupe, grey. Mileage: 47,700 miles. Price: £24,990, £1,360 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-059c2d93b205
• 2021 BMW 4 Series M Sport PRO Edition, 2.0 petrol coupe, grey. Mileage: 42,801 miles. Price: £25,798, £552 less than this car. Dealer: CarSupermarket.com Scunthorpe in Scunthorpe. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-ec0d08282ae8