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: 93,000 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport has covered 93,000 miles, around 48,900 more miles than is typical for its age. The dealer is asking £20,995, which is £3,488 above the AskCar estimate of £17,507. To work out the AskCar estimate, we analyse UK dealer adverts for 1,814 BMW 4 Series cars across different ages and specifications. We have tracked this advert for 88 days. Its advertised mileage matches the government's MOT record. You can find this car at Goldstone Cars in Bedford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £3,488 (19%) over the AskCar estimate of £17,507.

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 1,814 priced BMW 4 Series adverts across different ages and specifications, as of 4 November 2026.

A 2021 BMW 4 Series with the 2.0 diesel engine is typically advertised at £24,000: the median of the 144 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 88 days.

Price history

AskCar first saw this advert on 8 August 2026 at £20,995. 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 4 November 2026: valid until 10 July 2027.

It failed its MOT on 30 June 2026 (engine MIL inoperative or indicates a malfunction; nearside front tyre has a bulge, caused by separation or partial failure of its structure) and passed later the same day.

Advisories at the latest test: central small brace damaged underside of car advise replacement.

Mileage at that test: 93,020 miles, which matches the advertised 93,000 miles.

Advertised mileage is about 48,900 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 £26,500, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 95,385 miles. Price: £18,990, £2,005 less than this car. Dealer: Elton Cars in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-2efc3e00610e
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 97,000 miles. Price: £17,490, £3,505 less than this car. Dealer: Ashley Vehicle Solutions in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-fcf11892de2e
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 85,144 miles. Price: £19,775, £1,220 less than this car. Dealer: Riverside Motor Company (2009) in Chesterfield. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-f36578f5ac10

• The nearest: 2021 BMW 4 Series M Sport, 2.0 diesel coupe, black, 8 miles from this car. Mileage: 57,000 miles. Price: £22,990, £1,995 more than this car. Dealer: My Next Car in Sandy. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-e535ec62af1e