2021 BMW 3 Series 2.0 320d MHT M Sport

Price: £24,995. Fair price: £1,666 (7%) over the AskCar estimate of £23,328, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,862 priced BMW 3 Series adverts on AskCar as of 4 November 2026.

AskCar lists 7,147 used BMW 3 Series from 2,707 UK dealerships, as of 4 November 2026.

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: 41,000 miles
  • Fuel: Diesel, mild hybrid
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: White
  • CO2: 129 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 41,000 miles, approximately 14,200 below the typical mileage for its age. Its asking price of £24,995 is £1,666 above the AskCar estimate of £23,328. The AskCar estimate draws on 6,862 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 160 days. It is for sale at A C G Motors in Manchester. 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: £1,666 (7%) over the AskCar estimate of £23,328.

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 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £24,995. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 14,200 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, white. Mileage: 41,999 miles. Price: £20,989, £4,006 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, blue. Mileage: 40,000 miles. Price: £21,975, £3,020 less than this car. Dealer: Cottrell Motor Co in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-f6b4d8670c3f
  • 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 42,721 miles. Price: £22,495, £2,500 less than this car. Dealer: The Plough Garage in Farnham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-fd61162fcce3
  • The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black, 3 miles from this car. Mileage: 45,447 miles. Price: £23,990, £1,005 less than this car. Dealer: Brownroyd Motors in Heywood. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8d014b8edadb

Browse all BMW 3 Series cars for sale · 2021 BMW 3 Series price guide

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Photos

45 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.