2021 BMW 4 Series 2.0 420d MHT M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420d MHT M Sport Auto RWD Euro 6 (s/s) 2dr (187 bhp)
• Year: 2021
• Mileage: 49,901 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 49,901 miles, this 2021 BMW 4 Series M Sport has covered about 5,800 more miles than other 2021 BMW 4 Series cars. Its asking price of £22,300 is £647 below the AskCar estimate of £22,947. The AskCar estimate draws on 1,821 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert today. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Car Planet Barnet in New Southgate. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Fair price: £647 (2%) under the AskCar estimate of £22,947.

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 1,821 priced BMW 4 Series adverts across different ages and specifications, as of 11 November 2026.

A 2021 BMW 4 Series with the 2.0 diesel engine is typically advertised at £23,900: the median of the 148 for sale on AskCar, as of 11 November 2026.

Time on sale

AskCar first saw this 2021 BMW 4 Series advertised today. About 4 in 10 of 2021 BMW 4 Series cars are gone from sale within a month of being advertised: 115 of the 272 first advertised between 11 July 2026 and 8 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £22,300. 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 11 November 2026: valid until 2 October 2027.

It failed its MOT on 25 September 2026 (nearside front tyre tread depth below requirements of 1.6mm; offside front tyre has a lump, caused by separation or partial failure of its structure several along the inner wall) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 49,030 miles, which matches the advertised 49,901 miles.

Advertised mileage is about 5,800 miles higher than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

35 other 2021 BMW 4 Series M Sport 2.0 diesel automatic coupes are for sale at UK dealers, from £17,490 to £27,990, as of 11 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 49,500 miles. Price: £18,995, £3,305 less than this car. Dealer: Eclipse Car Sales in Winchester. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-b7a83f785d08
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, white. Mileage: 49,201 miles. Price: £23,890, £1,590 more than this car. Dealer: Stratstone BMW Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-507f22632c2f
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, grey. Mileage: 48,000 miles. Price: £26,495, £4,195 more than this car. Dealer: Q Performance Ltd / My1stcar.org in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-dd807ced0fa6

• The nearest: 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue, 12 miles from this car. Mileage: 73,131 miles. Price: £19,050, £3,250 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-8e45bfc0e270