2021 BMW 4 Series 2.0 420d MHT M Sport

Price: £22,490. Fair price: £1,654 (6%) under the AskCar estimate of £24,144, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,833 priced BMW 4 Series adverts on AskCar as of 5 November 2026.

AskCar lists 1,879 used BMW 4 Series from 1,081 UK dealerships, as of 5 November 2026.

Overview

  • Make: BMW
  • Model: 4 Series
  • Trim: M Sport
  • Version: 2.0 420d MHT M Sport Auto 4WD Euro 6 (s/s) 2dr (187 bhp)
  • Year: 2021
  • Mileage: 44,115 miles
  • Fuel: Diesel, mild hybrid
  • Body: Coupe, 2 doors, 4 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: White
  • CO2: 135 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport is advertised with 44,115 miles on the clock. Priced at £22,490, it is advertised £1,654 below the AskCar estimate of £24,144. The AskCar estimate uses UK dealer asking prices, including 1,833 BMW 4 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 49 days ago. Its asking price has since fallen by £1,000. The seller is Lloyd Select Blackpool, based in Blackpool. 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: £1,654 (6%) under the AskCar estimate of £24,144.

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 diesel 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 49 days.

Price history

AskCar first saw this advert on 17 September 2026 at £23,490. Its asking price is now £22,490, £1,000 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

  • 17 September 2026: £23,490
  • 8 October 2026: £22,990
  • 24 October 2026: £22,490

Mileage and MOT

Advertised mileage is about 100 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 5 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 44,000 miles. Price: £23,490, £1,000 more than this car. Dealer: Stratus in Basingstoke. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-90689fd0709d
  • 2021 BMW 4 Series M Sport, 2.0 diesel coupe, green. Mileage: 46,000 miles. Price: £26,500, £4,010 more than this car. Dealer: Q Performance Ltd / My1stcar.org in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-4151f00452e9
  • 2021 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 46,557 miles. Price: £23,498, £1,008 more than this car. Dealer: Arnold Clark Livingston Vauxhall in Livingston. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-6b9d6c6f4ec2

Browse all BMW 4 Series cars for sale · 2021 BMW 4 Series price guide

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Photos

73 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.