2021 BMW 3 Series 2.0 320d M Sport
Price: £23,499. Fair price: £918 (4%) over the AskCar estimate of £22,581, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,897 priced BMW 3 Series adverts on AskCar as of 5 November 2026.
AskCar lists 7,194 used BMW 3 Series from 2,714 UK dealerships, as of 5 November 2026.
Overview
- Make: BMW
- Model: 3 Series
- Trim: M Sport
- Version: 2.0 320d M Sport Auto RWD Euro 6 (s/s) 5dr Touring (187 bhp)
- Year: 2021
- Mileage: 48,197 miles
- Fuel: Diesel
- Body: Estate, 5 doors, 5 seats
- Engine: 2.0 litres, 187 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Grey
- CO2: 118 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 48,197 miles, this 2021 BMW 3 Series M Sport has covered about 6,600 fewer miles than other 2021 BMW 3 Series cars. The AskCar estimate for this car is £22,581. It is priced at £23,499, which is £918 above that estimate. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 18 days ago. Its asking price has since fallen by £500. You can find this car at Fresh Motors in Thetford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £918 (4%) over the AskCar estimate of £22,581.
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 18 days.
Price history
AskCar first saw this advert on 18 October 2026 at £23,999. Its asking price is now £23,499, £500 less. The latest price cut was seen on 29 October 2026.
Price changes recorded:
- 18 October 2026: £23,999
- 29 October 2026: £23,499
Mileage and MOT
Advertised mileage is about 6,600 miles lower 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: 47,910 miles. Price: £25,350, £1,851 more than this car. Dealer: Sytner Sheffield BMW in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8d676d2bc383
- 2021 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 47,663 miles. Price: £17,999, £5,500 less than this car. Dealer: Berkeley Motor Group in Greenford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-87938ae16550
- 2021 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 49,135 miles. Price: £21,990, £1,509 less than this car. Dealer: Your Best Car (Bucks) in High Wycombe. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-003f5aac586a
- The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey, under a mile from this car. Mileage: 28,192 miles. Price: £24,999, £1,500 more than this car. Dealer: Fresh Motors in Watton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4de77df75324
Browse all BMW 3 Series cars for sale · 2021 BMW 3 Series price guide
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- Used BMW 3 Series for sale near Dereham
Photos
55 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.