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: 42,721 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 42,721 miles, approximately 12,400 below the typical mileage for its age. Priced at £22,495, it is advertised £595 below the AskCar estimate of £23,090. The AskCar estimate uses 6,862 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 94 days ago. Its asking price has since fallen by £500. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by The Plough Garage in Farnham. 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

Fair price: £595 (2%) under the AskCar estimate of £23,090.

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

This 2021 BMW 3 Series has been on sale for at least 94 days.

Price history

AskCar first saw this advert on 2 August 2026 at £22,995. Its asking price is now £22,495, £500 less. The latest price cut was seen on 14 October 2026.

Price changes recorded:

• 2 August 2026: £22,995
• 14 October 2026: £22,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 18 March 2027.

It has had 3 MOTs. The latest, on 12 March 2026, passed.

Advisories at the latest test: nearside rear nail in tyre.

Mileage at that test: 39,949 miles, which matches the advertised 42,721 miles.

Advertised mileage is about 12,400 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 £13,500 to £25,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 42,850 miles. Price: £25,449, £2,954 more than this car. Dealer: Paragon Cars London in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2b043aa67e19
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 41,999 miles. Price: £20,989, £1,506 less than this car. Dealer: Essex Prestige in Harlow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-ca38751a2213
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 44,307 miles. Price: £24,990, £2,495 more than this car. Dealer: Sycamore BMW in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-acd525e74a91

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue, under a mile from this car. Mileage: 51,628 miles. Price: £21,995, £500 less than this car. Dealer: The Plough Garage in Farnham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d64a5c9c1bce