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: 48,500 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 48,500 miles, this 2021 BMW 3 Series M Sport has covered about 6,300 fewer miles than other 2021 BMW 3 Series cars. Priced at £21,790, it is advertised £412 below the AskCar estimate of £22,202. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 6 days. Its advertised mileage matches the government's MOT record. The seller is S James Prestige, based in Stamford. 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: £412 (1%) under the AskCar estimate of £22,202.

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

AskCar first saw this 2021 BMW 3 Series advertised 6 days ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 429 of the 907 first advertised between 10 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £21,790. 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 20 August 2027.

It has had 3 MOTs. The latest, on 29 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 46,972 miles, which matches the advertised 48,500 miles.

Advertised mileage is about 6,300 miles lower 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 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 48,000 miles. Price: £20,995, £795 less than this car. Dealer: Top Tier Autos in Cheadle. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-67de26e40fa9
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 49,000 miles. Price: £20,999, £791 less than this car. Dealer: Lookers Charles Hurst Usedirect Portadown in Portadown. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-461875513191
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 47,896 miles. Price: £21,990, £200 more than this car. Dealer: Haywards Automotive in Canvey Island. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-131e162c038b

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey, under a mile from this car. Mileage: 47,200 miles. Price: £19,990, £1,800 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-eb2e5543ed6a