2021 BMW 3 Series 2.0 320d MHT M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320d MHT M Sport Auto RWD Euro 6 (s/s) 4dr (187 bhp)
• Year: 2021
• Mileage: 59,813 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 59,813 miles, approximately 4,700 above the typical mileage for its age. Priced at £20,795, it is advertised £18 above the AskCar estimate of £20,777. The AskCar estimate uses 6,902 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 162 days ago, the asking price has dropped by £1,700. Our records show an MOT expiry date of 5 September 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. You can find this car at Crawford Clarke Cars in Belfast. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £18 (under 1%) over the AskCar estimate of £20,777.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 162 days.

Price history

AskCar first saw this advert on 28 May 2026 at £22,495. Its asking price is now £20,795, £1,700 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 29 May 2026: £22,495
• 22 June 2026: £21,495
• 11 August 2026: £22,495
• 19 September 2026: £21,995
• 30 September 2026: £21,495
• 17 October 2026: £20,795

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 5 September 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 28 August 2025, passed.

Advisories at the latest test: windscreen damaged but not adversely affecting driver's view.

Mileage at that test: 49,992 miles, which matches the advertised 59,813 miles.

Advertised mileage is about 4,700 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

59 other 2021 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £12,700 to £25,995, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 59,224 miles. Price: £18,150, £2,645 less than this car. Dealer: Evans Halshaw BYD Mansfield in Mansfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7c144ef5e598
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 61,113 miles. Price: £23,495, £2,700 more than this car. Dealer: Top Cars Telford in Dawley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7cf302f2574f
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 57,347 miles. Price: £21,000, £205 more than this car. Dealer: Sytner Cardiff BMW in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2dd0aa390260

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white, 4 miles from this car. Mileage: 69,996 miles. Price: £18,890, £1,905 less than this car. Dealer: Lookers in Belfast. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a713dcba75ec