2021 BMW 3 Series 2.0 320i M Sport

Price: £17,500. Above the going rate: £1,712 (10%) over the AskCar estimate of £15,788, 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 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)
  • Year: 2021
  • Mileage: 83,208 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 181 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Grey
  • CO2: 146 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 83,208 miles, approximately 28,100 above the typical mileage for its age. The AskCar estimate for this car is £15,788. It is priced at £17,500, which is £1,712 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. It first appeared in our advert records 1 day ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Magna Motor Group in Warrington. 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

Above the going rate: £1,712 (10%) over the AskCar estimate of £15,788.

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

AskCar first saw this 2021 BMW 3 Series advertised 1 day ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 418 of the 887 first advertised between 10 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £17,500. 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 4 November 2026: valid until 30 June 2027.

It has had 4 MOTs. The latest, on 1 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 82,617 miles, which matches the advertised 83,208 miles.

Advertised mileage is about 28,100 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 4 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 83,260 miles. Price: £15,249, £2,251 less than this car. Dealer: Cars Yard in Harrow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-64f82d8a3369
  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 84,000 miles. Price: £15,900, £1,600 less than this car. Dealer: Automoto UK in Banbridge. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a7158d4dfadb
  • 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 82,000 miles. Price: £17,495, the same price as this car. Dealer: Chase Lane Motors in Waltham Abbey. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bf9c1bd531cd
  • The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white, under a mile from this car. Mileage: 22,891 miles. Price: £23,352, £5,852 more than this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-72595b264e0a

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

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Photos

13 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.