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 4WD Euro 6 (s/s) 5dr Touring (187 bhp)
• Year: 2021
• Mileage: 76,890 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 138 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 76,890 miles, this 2021 BMW 3 Series M Sport has covered about 22,100 more miles than other 2021 BMW 3 Series cars. Its asking price of £18,490 is £364 below the AskCar estimate of £18,854. 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 first recorded this car for sale 14 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Quins Specialist Cars in Swindon. 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: £364 (1%) under the AskCar estimate of £18,854.

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 14 days.

Price history

AskCar first saw this advert on 22 October 2026 at £18,490. 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 17 May 2027.

It has had 4 MOTs. The latest, on 5 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 69,884 miles, which matches the advertised 76,890 miles.

Advertised mileage is about 22,100 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

33 other 2021 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £13,750 to £29,950, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 73,593 miles. Price: £20,000, £1,510 more than this car. Dealer: Cotswold Group Select in Tewkesbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4553fa66cea9
• 2021 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 69,000 miles. Price: £19,995, £1,505 more than this car. Dealer: Motorhouse (Beds) in Bedford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-1a90fcd734d1
• 2021 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 67,301 miles. Price: £18,590, £100 more than this car. Dealer: Norwich Cars And Vans in Norwich. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a800eb80d06b

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel estate, white, 31 miles from this car. Mileage: 46,692 miles. Price: £24,290, £5,800 more than this car. Dealer: Dick Lovett BMW Bristol in Bristol. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-30b7a51b5219