2021 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: 2021
• Mileage: 57,443 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 151 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport is advertised with 57,443 miles, approximately 13,400 above the typical mileage for its age. Its asking price of £22,495 is £480 above the AskCar estimate of £22,015. To work out the AskCar estimate, we analyse UK dealer adverts for 1,826 BMW 4 Series cars across different ages and specifications. It first appeared in our advert records 7 days ago. Its advertised mileage matches the government's MOT record. The seller is The Car Centre, based in Fallowfield. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £480 (2%) over the AskCar estimate of £22,015.

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 1,826 priced BMW 4 Series adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW 4 Series with the 2.0 petrol engine is typically advertised at £23,800: the median of the 148 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 7 days.

Price history

AskCar first saw this advert on 30 October 2026 at £22,495. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 2 April 2027.

It failed its MOT on 1 April 2026 (rear brake pad(s) less than 1.5 mm thick) and passed later the same day.

Advisories at the latest test: front brake pad(s) wearing thin; nearside front tyre slightly damaged/cracking or perishing; undertrays fitted.

Mileage at that test: 49,439 miles, which matches the advertised 57,443 miles.

Advertised mileage is about 13,400 miles higher than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

47 other 2021 BMW 4 Series M Sport 2.0 petrol automatic coupes are for sale at UK dealers, from £17,490 to £27,975, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue. Mileage: 58,347 miles. Price: £21,995, £500 less than this car. Dealer: Richard Greer Car Sales in Ballyclare. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-581b1cbc102c
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, white. Mileage: 56,431 miles. Price: £17,490, £5,005 less than this car. Dealer: Car Holics in Hillingdon. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-50114104eb76
• 2021 BMW 4 Series M Sport, 2.0 petrol coupe, black. Mileage: 53,139 miles. Price: £22,100, £395 less than this car. Dealer: Carsa Southampton in Southampton. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-3a9b41c02d84

• The nearest: 2021 BMW 4 Series M Sport, 2.0 petrol coupe, blue, 6 miles from this car. Mileage: 28,502 miles. Price: £24,799, £2,304 more than this car. Dealer: Fords of Winsford Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-029b5d1c5ee2