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) 5dr Touring (187 bhp)
• Year: 2021
• Mileage: 73,593 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 134 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 73,593 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 18,800 more miles than a typical 2021 BMW 3 Series. Priced at £20,000, it is advertised £353 above the AskCar estimate of £19,647. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 9 days ago. Its asking price has since fallen by £1,000. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Cotswold Group Select in Tewkesbury. 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: £353 (1%) over the AskCar estimate of £19,647.

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 9 days.

Price history

AskCar first saw this advert on 27 October 2026 at £21,000. Its asking price is now £20,000, £1,000 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 27 October 2026: £21,000
• 3 November 2026: £20,500
• 4 November 2026: £20,000

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 October 2027.

It has had 6 MOTs. The latest, on 21 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 73,594 miles, which matches the advertised 73,593 miles.

Advertised mileage is about 18,800 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: 76,890 miles. Price: £18,490, £1,510 less than this car. Dealer: Quins Specialist Cars in Swindon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c850a32baced
• 2021 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 69,000 miles. Price: £19,995, the same price as 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, £1,410 less than this car. Dealer: Norwich Cars And Vans in Norwich. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a800eb80d06b