2021 BMW 3 Series 2.0 320i M Sport

Price: £18,899. Fair price: £305 (1%) under the AskCar estimate of £19,204, 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: 57,094 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 57,094 miles, approximately 2,300 above the typical mileage for its age. The AskCar estimate for this car is £19,204. It is priced at £18,899, which is £305 below that estimate. 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. It first appeared in our advert records 22 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Eastern Western Motor Group Car Deal Warehouse Stirling, based in Stirling. 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: £305 (1%) under the AskCar estimate of £19,204.

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 22 days.

Price history

AskCar first saw this advert on 14 October 2026 at £18,899. 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 5 November 2026: valid until 29 April 2027.

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

There were no advisories at the latest test.

Mileage at that test: 53,705 miles, which matches the advertised 57,094 miles.

Advertised mileage is about 2,300 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, white. Mileage: 56,900 miles. Price: £18,995, £96 more than this car. Dealer: Auto Bazaa in Enfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7a52bb8f8445
  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 57,523 miles. Price: £17,190, £1,709 less than this car. Dealer: Evans Halshaw Omoda Jaecoo Gainsborough in Gainsborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-61e2708f9866
  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 57,833 miles. Price: £20,998, £2,099 more than this car. Dealer: Arnold Clark Stirling Volvo / GWM / BYD in Stirling. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-e089a124ef46

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

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Photos

14 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.