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 RWD Euro 6 (s/s) 5dr Touring (187 bhp)
• Year: 2020
• Mileage: 49,000 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 49,000 miles on the clock, this 2020 BMW 3 Series M Sport has done roughly 10,700 fewer miles than a typical 2020 BMW 3 Series. The dealer is asking £22,590, which is £466 above the AskCar estimate of £22,124. To work out the AskCar estimate, we analyse UK dealer adverts for 6,862 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 40 days ago. Its asking price has since fallen by £1,200. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone BMW Milton Keynes, based in Milton Keynes. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £466 (2%) over the AskCar estimate of £22,124.

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 6,862 priced BMW 3 Series adverts across different ages and specifications, as of 4 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 4 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 40 days.

Price history

AskCar first saw this advert on 25 September 2026 at £23,790. Its asking price is now £22,590, £1,200 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 25 September 2026: £23,790
• 24 October 2026: £23,490
• 30 October 2026: £22,590

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 9 September 2027.

It has had 5 MOTs. The latest, on 28 August 2026, passed.

Advisories at the latest test: rear brake pad(s) wearing thin.

Mileage at that test: 49,271 miles, which matches the advertised 49,000 miles.

Advertised mileage is about 10,700 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 4 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 48,676 miles. Price: £22,304, £286 less than this car. Dealer: Stoneacre Halifax Omoda/Jaecoo in Halifax. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-1861621a3a3d
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 48,672 miles. Price: £22,290, £300 less than this car. Dealer: John Clark SEAT Aberdeen in Aberdeen. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-2465c729977f
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 49,781 miles. Price: £22,498, £92 less than this car. Dealer: Arnold Clark Glasgow South Street Vauxhall Peugeot Citroen Ds Mazda Vanstorelepas in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-09e02f6bd5d5

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel estate, white, 30 miles from this car. Mileage: 63,231 miles. Price: £19,000, £3,590 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-ac5bea5c47a6