2021 BMW 3 Series 2.0 320d MHT M Sport

Price: £24,290. Fair price: £501 (2%) over the AskCar estimate of £23,789, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,862 priced BMW 3 Series adverts on AskCar as of 4 November 2026.

AskCar lists 7,147 used BMW 3 Series from 2,707 UK dealerships, as of 4 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: M Sport
  • Version: 2.0 320d MHT M Sport Auto RWD Euro 6 5dr (187 bhp)
  • Year: 2021
  • Mileage: 39,102 miles
  • Fuel: Diesel, mild hybrid
  • Body: Estate, 5 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Grey
  • CO2: 128 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 39,102 miles, around 16,000 fewer miles than is typical for its age. The AskCar estimate for this car is £23,789. It is priced at £24,290, which is £501 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,862 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 72 days ago, and its asking price has since fallen by £1,200. The latest recorded MOT expiry date is 29 September 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Bmw Hull, based in Hull. 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

Fair price: £501 (2%) over the AskCar estimate of £23,789.

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 6,862 priced BMW 3 Series adverts across different ages and specifications, as of 4 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 72 days.

Price history

AskCar first saw this advert on 24 August 2026 at £25,490. Its asking price is now £24,290, £1,200 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

  • 24 August 2026: £25,490
  • 5 September 2026: £25,290
  • 13 September 2026: £25,090
  • 26 September 2026: £24,790
  • 9 October 2026: £24,490
  • 16 October 2026: £24,390
  • 27 October 2026: £24,290

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 29 September 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 18 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 36,277 miles, which matches the advertised 39,102 miles.

Advertised mileage is about 16,000 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

30 other 2021 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £13,750 to £27,495, as of 4 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 3 Series M Sport, 2.0 diesel estate, blue. Mileage: 46,093 miles. Price: £22,995, £1,295 less than this car. Dealer: John Clark BMW Tayside in Dundee. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-548c703fec05
  • 2021 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 46,292 miles. Price: £21,870, £2,420 less than this car. Dealer: Evans Halshaw Ford Coatbridge in Coatbridge. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-de91c917b398
  • 2021 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 46,692 miles. Price: £24,290, the same price as this car. Dealer: Dick Lovett BMW Bristol in Bristol. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-30b7a51b5219
  • The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey, 51 miles from this car. Mileage: 47,910 miles. Price: £25,350, £1,060 more than this car. Dealer: Sytner Sheffield BMW in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8d676d2bc383

Browse all BMW 3 Series cars for sale · 2021 BMW 3 Series price guide

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Photos

46 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.