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: 77,730 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 120 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series M Sport has covered 77,730 miles, around 18,100 more miles than is typical for its age. The dealer is asking £18,495, which is £1,388 above the AskCar estimate of £17,107. 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 69 days ago. Its asking price has since fallen by £900. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Ilex Car Sales in Londonderry. 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

Above the going rate: £1,388 (8%) over the AskCar estimate of £17,107.

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 69 days.

Price history

AskCar first saw this advert on 28 August 2026 at £19,395. Its asking price is now £18,495, £900 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 28 August 2026: £19,395
• 26 October 2026: £18,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 1 May 2027.

It has had 4 MOTs. The latest, on 2 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 75,718 miles, which matches the advertised 77,730 miles.

Advertised mileage is about 18,100 miles higher 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, grey. Mileage: 78,430 miles. Price: £16,350, £2,145 less than this car. Dealer: Perrys Milton Keynes Peugeot & Citroen in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-ea637dcb79df
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 76,535 miles. Price: £16,895, £1,600 less than this car. Dealer: SG Motorhouse in Hoddesdon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-12b5ce3133ae
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 76,000 miles. Price: £16,995, £1,500 less than this car. Dealer: AP Vehicle Trading in Glen Parva. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-b90d16edbc77

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel saloon, grey, under a mile from this car. Mileage: 79,927 miles. Price: £18,495, the same price as this car. Dealer: Ilex Car Sales in Limavady. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-fb71b5836f1c