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 RWD Euro 6 (s/s) 4dr (181 bhp)
• Year: 2021
• Mileage: 52,345 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 52,345 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 2,500 fewer miles than a typical 2021 BMW 3 Series. Priced at £19,995, it is advertised £240 above the AskCar estimate of £19,755. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 16 days ago, the asking price has dropped by £1,000. Its advertised mileage matches the government's MOT record. It is advertised by Crystal Motor Company in Northampton. 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: £240 (1%) over the AskCar estimate of £19,755.

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 16 days.

Price history

AskCar first saw this advert on 20 October 2026 at £20,995. Its asking price is now £19,995, £1,000 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 20 October 2026: £20,995
• 23 October 2026: £19,995

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 August 2027.

It failed its MOT on 22 July 2026 (nearside front tyre has a bulge, caused by separation or partial failure of its structure; nearside rear tyre has a bulge, caused by separation or partial failure of its structure) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 49,073 miles, which matches the advertised 52,345 miles.

Advertised mileage is about 2,500 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, white. Mileage: 52,239 miles. Price: £19,099, £896 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-55b02185bbaa
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 52,100 miles. Price: £20,500, £505 more than this car. Dealer: Colin Ludwell Cars in Bristol. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-493fbe4eed48
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 52,000 miles. Price: £18,490, £1,505 less than this car. Dealer: Grainger Motor Group Mantles BYD Royston in Royston. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3a62f9d743e5

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey, 2 miles from this car. Mileage: 27,600 miles. Price: £22,750, £2,755 more than this car. Dealer: Wollaston BMW in Wollaston. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-99cf2662d1ee