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) 5dr Touring (187 bhp)
• Year: 2020
• Mileage: 37,219 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 37,219 miles, this 2020 BMW 3 Series M Sport has covered about 22,400 fewer miles than other 2020 BMW 3 Series cars. The dealer is asking £22,200, which is £1,572 below the AskCar estimate of £23,772. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. Since we first spotted the advert 123 days ago, the asking price has dropped by £3,550. The government's MOT record matches its advertised mileage. It is for sale at 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: £1,572 (6%) under the AskCar estimate of £23,772.

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 123 days.

Price history

AskCar first saw this advert on 5 July 2026 at £25,750. Its asking price is now £22,200, £3,550 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 5 July 2026: £25,750
• 27 July 2026: £25,600
• 3 August 2026: £25,450
• 10 August 2026: £25,350
• 18 August 2026: £25,200
• 25 August 2026: £25,050
• 1 September 2026: £24,950
• 8 September 2026: £24,750
• 15 September 2026: £24,600
• 22 September 2026: £24,300
• 28 September 2026: £24,000
• 4 October 2026: £23,700
• 9 October 2026: £23,400
• 16 October 2026: £23,100
• 21 October 2026: £22,800
• 28 October 2026: £22,500
• 3 November 2026: £22,200

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 13 July 2027.

It has had 4 MOTs. The latest, on 14 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 37,215 miles, which matches the advertised 37,219 miles.

Advertised mileage is about 22,400 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

37 other 2020 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £11,800 to £24,999, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 34,782 miles. Price: £22,995, £795 more than this car. Dealer: JRP Autos in Bebington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-baaaec8124ca
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, blue. Mileage: 40,527 miles. Price: £22,196, the same price as this car. Dealer: Pentagon Burton in Burton upon Trent. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-f9925006640f
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 41,128 miles. Price: £23,945, £1,745 more than this car. Dealer: David Hayton Autostore Penrith in Penrith. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-85a71ef940d2

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel estate, white, 12 miles from this car. Mileage: 63,231 miles. Price: £18,700, £3,500 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-ac5bea5c47a6