2020 BMW 3 Series 2.0 320d M Sport

Price: £21,991. Fair price: £701 (3%) under the AskCar estimate of £22,692, 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 M Sport Auto RWD Euro 6 4dr (187 bhp)
  • Year: 2020
  • Mileage: 35,465 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Blue
  • CO2: 113 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series M Sport has covered 35,465 miles, around 24,500 fewer miles than is typical for its age. The dealer is asking £21,991, which is £701 below the AskCar estimate of £22,692. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 27 days ago. Its asking price has since fallen by £500. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Your Next Car in Nottingham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £701 (3%) under the AskCar estimate of £22,692.

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.

A 2020 BMW 3 Series with the 2.0 diesel engine is typically advertised at £18,500: the median of the 462 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 27 days.

Price history

AskCar first saw this advert on 10 October 2026 at £22,491. Its asking price is now £21,991, £500 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

  • 10 October 2026: £22,491
  • 4 November 2026: £21,991

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 12 October 2027.

It has had 6 MOTs. The latest, on 13 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 35,471 miles, which matches the advertised 35,465 miles.

Advertised mileage is about 24,500 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

68 other 2020 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £10,290 to £23,977, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2020 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 35,828 miles. Price: £23,000, £1,009 more than this car. Dealer: John Clark BMW Tayside in Dundee. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e19d8dd8f67a
  • 2020 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 36,300 miles. Price: £22,995, £1,004 more than this car. Dealer: Southern Prestige Cars in Crawley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-b3c4f7a74150
  • 2020 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 40,000 miles. Price: £23,395, £1,404 more than this car. Dealer: Williams Bmw Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e4dbf161b889
  • The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue, 17 miles from this car. Mileage: 56,516 miles. Price: £17,320, £4,671 less than this car. Dealer: Carsa Mountsorrel in Mountsorrel. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e0c3cf1743a3

Browse all BMW 3 Series cars for sale · 2020 BMW 3 Series price guide

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Photos

49 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.