2021 BMW 3 Series 2.0 320i M Sport

Price: £18,399. Fair price: £122 (under 1%) over the AskCar estimate of £18,277, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,897 priced BMW 3 Series adverts on AskCar as of 5 November 2026.

AskCar lists 7,194 used BMW 3 Series from 2,714 UK dealerships, as of 5 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: M Sport
  • Version: 2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)
  • Year: 2021
  • Mileage: 64,163 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 181 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Black
  • CO2: 146 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 64,163 miles, approximately 9,300 above the typical mileage for its age. Priced at £18,399, it is advertised £122 above the AskCar estimate of £18,277. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 62 days ago, and its asking price has since fallen by £800. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Bmw Leeds, based in Leeds. 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: £122 (under 1%) over the AskCar estimate of £18,277.

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 6,897 priced BMW 3 Series adverts across different ages and specifications, as of 5 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 62 days.

Price history

AskCar first saw this advert on 4 September 2026 at £19,199. Its asking price is now £18,399, £800 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

  • 4 September 2026: £19,199
  • 23 September 2026: £19,099
  • 8 October 2026: £18,999
  • 23 October 2026: £18,490
  • 5 November 2026: £18,399

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 30 June 2027.

It has had 3 MOTs. The latest, on 27 June 2026, passed.

Advisories at the latest test: underside of vehicle has covers, not allowing full inspection.

Mileage at that test: 62,070 miles, which matches the advertised 64,163 miles.

Advertised mileage is about 9,300 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

146 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £14,000 to £26,950, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 64,000 miles. Price: £18,300, £99 less than this car. Dealer: Car Valley in Redbridge. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-88a5464df34d
  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 64,800 miles. Price: £17,990, £409 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a2d320d1dc39
  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 63,377 miles. Price: £17,020, £1,379 less than this car. Dealer: Evans Halshaw Citroen Hull in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-256b9c38dad8
  • The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white, 2 miles from this car. Mileage: 43,000 miles. Price: £20,985, £2,586 more than this car. Dealer: Brooklands Motor Centre in Leeds. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bbd215a52f63

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

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Photos

32 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.