2020 BMW 3 Series 2.0 320d MHT M Sport

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: 2020
• Mileage: 54,500 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

With 54,500 miles on the clock, this 2020 BMW 3 Series M Sport has done roughly 5,100 fewer miles than a typical 2020 BMW 3 Series. The AskCar estimate for this car is £20,859. It is priced at £19,490, which is £1,369 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 56 days ago. Its asking price has since fallen by £500. The government's MOT record matches its advertised mileage. It is advertised by S James Prestige in Stamford. 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: £1,369 (6%) under the AskCar estimate of £20,859.

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 56 days.

Price history

AskCar first saw this advert on 10 September 2026 at £19,990. Its asking price is now £19,490, £500 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 10 September 2026: £19,990
• 22 October 2026: £19,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 2 December 2026.

It has had 3 MOTs. The latest, on 7 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 51,325 miles, which matches the advertised 54,500 miles.

Advertised mileage is about 5,100 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, white. Mileage: 54,024 miles. Price: £19,200, £290 less than this car. Dealer: Redgate Lodge in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e6f6fd4a004b
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 55,000 miles. Price: £22,000, £2,510 more than this car. Dealer: The New Car Group in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-793ee56a8e02
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 56,516 miles. Price: £17,320, £2,170 less than this car. Dealer: Carsa Mountsorrel in Mountsorrel. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e0c3cf1743a3

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel saloon, black, 10 miles from this car. Mileage: 167,159 miles. Price: £9,990, £9,500 less than this car. Dealer: Auto Zone Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e30ed357b555