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 2dr Step (181 bhp)
• Year: 2021
• Mileage: 42,801 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 150 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport Pro Edition has covered 42,801 miles. Priced at £25,798, it is advertised £29 above the AskCar estimate of £25,769. 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 15 days ago, and its asking price has since fallen by £200. The government's MOT record matches its advertised mileage. You can find this car at CarSupermarket.com Scunthorpe in North Lincolnshire. 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: £29 (under 1%) over the AskCar estimate of £25,769.

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 15 days.

Price history

AskCar first saw this advert on 21 October 2026 at £25,998. Its asking price is now £25,798, £200 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 21 October 2026: £25,998
• 31 October 2026: £25,798

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 11 February 2027.

It failed its MOT on 10 February 2026 (offside front tyre has a bulge, caused by separation or partial failure of its structure; offside front tyre has ply or cords exposed) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 37,442 miles, which matches the advertised 42,801 miles.

Advertised mileage is about 1,300 miles lower 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: 47,700 miles. Price: £24,990, £808 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: 50,000 miles. Price: £24,490, £1,308 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, blue. Mileage: 35,000 miles. Price: £28,480, £2,682 more than this car. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-cde11adfd244

• The nearest: 2021 BMW 4 Series M Sport PRO Edition, 2.0 petrol coupe, grey, 17 miles from this car. Mileage: 14,047 miles. Price: £29,290, £3,492 more than this car. Dealer: ProSportsCars in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-4ac29d6eae84