2021 BMW 3 Series 2.0 320i M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320i M Sport Auto Euro 6 4dr (181 bhp)
• Year: 2021
• Mileage: 54,638 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Colour: Grey
• CO2: 155 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 54,638 miles. Its asking price of £19,799 is £450 below the AskCar estimate of £20,249. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 33 days ago, the asking price has dropped by £700. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at cinch Corby in North Northamptonshire. 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: £450 (2%) under the AskCar estimate of £20,249.

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 33 days.

Price history

AskCar first saw this advert on 3 October 2026 at £20,499. Its asking price is now £19,799, £700 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 3 October 2026: £20,499
• 24 October 2026: £20,299
• 4 November 2026: £19,799

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 16 September 2027.

It has had 6 MOTs. The latest, on 17 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 54,637 miles, which matches the advertised 54,638 miles.

Advertised mileage is about 200 miles lower 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, black. Mileage: 54,716 miles. Price: £20,950, £1,151 more than this car. Dealer: M B Cars London in St Albans. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bf0142c99315
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 54,437 miles. Price: £20,499, £700 more than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3a2e12458c14
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 53,444 miles. Price: £19,395, £404 less than this car. Dealer: Motor Trust UK Garstang in Preston. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c8daac2312c2

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, under a mile from this car. Mileage: 66,945 miles. Price: £19,799, the same price as this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-230d8c9a446e