2020 BMW 3 Series 2.0 320d M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320d M Sport Auto 4WD Euro 6 (s/s) 4dr (187 bhp)
• Year: 2020
• Mileage: 57,727 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 120 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series M Sport has covered 57,727 miles. Priced at £19,400, it is advertised £481 below the AskCar estimate of £19,881. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert for 8 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Car Planet Barnet in New Southgate. 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: £481 (2%) under the AskCar estimate of £19,881.

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.

A 2020 BMW 3 Series with the 2.0 diesel engine is typically advertised at £18,500: the median of the 461 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 28 October 2026 at £19,400. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 22 March 2027.

It has had 4 MOTs. The latest, on 23 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 53,950 miles, which matches the advertised 57,727 miles.

Advertised mileage is about 1,900 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

66 other 2020 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £9,990 to £23,977, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 56,740 miles. Price: £20,990, £1,590 more than this car. Dealer: 4Kay Motors in Heywood. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-af7c72d9ae60
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 56,516 miles. Price: £17,320, £2,080 less than this car. Dealer: Carsa Mountsorrel in Mountsorrel. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e0c3cf1743a3
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 59,704 miles. Price: £19,945, £545 more than this car. Dealer: Gormley Car Sales in Magherafelt. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e737d989363e

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue, 5 miles from this car. Mileage: 87,000 miles. Price: £14,995, £4,405 less than this car. Dealer: GB Vehicles in Edgware. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-25daf45424d5