2021 BMW 3 Series 2.0 M Sport

Price: £27,495. Fair price: £1,324 (5%) over the AskCar estimate of £26,171, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,902 priced BMW 3 Series adverts on AskCar as of 6 November 2026.

AskCar lists 7,204 used BMW 3 Series from 2,726 UK dealerships, as of 6 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: M Sport
  • Version: 2.0 MHT M Sport Auto Euro 6 5dr
  • Year: 2021
  • Mileage: 25,645 miles
  • Fuel: Diesel, mild hybrid
  • Body: Estate, 5 doors, 5 seats
  • Engine: 2.0 litres
  • Gearbox: Automatic
  • Colour: Blue
  • CO2: 135 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 25,645 miles, around 29,500 fewer miles than is typical for its age. The dealer is asking £27,495, which is £1,324 above the AskCar estimate of £26,171. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. We first recorded this advert 23 days ago, and its asking price has since fallen by £500. Its advertised mileage matches the government's MOT record. The seller is Park's Motor Group Douglas Park BMW Stirling, based in Stirling. 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: £1,324 (5%) over the AskCar estimate of £26,171.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 23 days.

Price history

AskCar first saw this advert on 14 October 2026 at £27,995. Its asking price is now £27,495, £500 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

  • 14 October 2026: £27,995
  • 1 November 2026: £27,795
  • 4 November 2026: £27,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 21 May 2027.

It has had 3 MOTs. The latest, on 8 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 24,356 miles, which matches the advertised 25,645 miles.

Advertised mileage is about 29,500 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

34 other 2021 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £13,750 to £29,950, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 27,430 miles. Price: £29,950, £2,455 more than this car. Dealer: Stratstone Bmw Harrogate in Harrogate. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8800a472eb03
  • 2021 BMW 3 Series M Sport, 2.0 diesel estate, blue. Mileage: 27,496 miles. Price: £23,999, £3,496 less than this car. Dealer: Fresh Motors in Watton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bc96f46a083f
  • 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 28,192 miles. Price: £24,999, £2,496 less than this car. Dealer: Fresh Motors in Watton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4de77df75324
  • The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey, 17 miles from this car. Mileage: 54,180 miles. Price: £22,498, £4,997 less than this car. Dealer: Arnold Clark Armadale Citroen Leapmotor Vanstore in Armadale. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-47d501d10cbc

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

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Photos

23 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.