2021 BMW 3 Series 2.0 320d MHT M Sport
Price: £16,389. Fair price: £143 (under 1%) over the AskCar estimate of £16,246, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,902 priced BMW 3 Series adverts on AskCar as of 6 November 2026.
AskCar lists 7,204 used BMW 3 Series from 2,726 UK dealerships, as of 6 November 2026.
Overview
- Make: BMW
- Model: 3 Series
- Trim: M Sport
- Version: 2.0 320d MHT M Sport Auto Euro 6 4dr (187 bhp)
- Year: 2021
- Mileage: 89,000 miles
- Fuel: Diesel, mild hybrid
- Body: Saloon, 4 doors, 5 seats
- Engine: 2.0 litres, 187 bhp
- Gearbox: Automatic
- Colour: Black
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 89,000 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 33,900 more miles than a typical 2021 BMW 3 Series. The AskCar estimate for this car is £16,246. It is priced at £16,389, which is £143 above that estimate. The AskCar estimate draws on 6,902 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 41 days ago. Its asking price has since fallen by £590. The seller is The Car Guys, based in Dunstable. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Fair price: £143 (under 1%) over the AskCar estimate of £16,246.
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 41 days.
Price history
AskCar first saw this advert on 26 September 2026 at £16,979. Its asking price is now £16,389, £590 less. The latest price cut was seen on 27 October 2026.
Price changes recorded:
- 26 September 2026: £16,979
- 27 October 2026: £16,389
Mileage and MOT
Advertised mileage is about 33,900 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, white. Mileage: 87,009 miles. Price: £18,950, £2,561 more than this car. Dealer: Ballinderry Car Sales in Lisburn. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-1324a3aefdc2
- 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 84,028 miles. Price: £17,685, £1,296 more than this car. Dealer: Bayer Car Sales in Fareham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c63cc66c238b
- 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 83,092 miles. Price: £17,500, £1,111 more than this car. Dealer: Magna Motor Group in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8ddb171dcb59
- The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue, 7 miles from this car. Mileage: 56,000 miles. Price: £20,000, £3,611 more than this car. Dealer: Praters in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-42a6035914dc
Browse all BMW 3 Series cars for sale · 2021 BMW 3 Series price guide
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Photos
39 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.