2020 BMW 3 Series 2.0 M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 MHT M Sport Auto Euro 6 4dr
• Year: 2020
• Mileage: 40,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic
• Colour: Grey
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 40,000 miles, this 2020 BMW 3 Series M Sport has covered about 19,700 fewer miles than other 2020 BMW 3 Series cars. The AskCar estimate for this car is £22,227. It is priced at £23,395, which is £1,168 above that estimate. 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 18 days ago. Its asking price has since fallen by £295. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Williams Bmw Manchester, based in Manchester. 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: £1,168 (5%) over the AskCar estimate of £22,227.

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 18 days.

Price history

AskCar first saw this advert on 17 October 2026 at £23,690. Its asking price is now £23,395, £295 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 17 October 2026: £23,690
• 30 October 2026: £23,395

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 22 December 2026.

It has had 3 MOTs. The latest, on 2 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 35,034 miles, which matches the advertised 40,000 miles.

Advertised mileage is about 19,700 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

65 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 4 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 41,030 miles. Price: £19,820, £3,575 less than this car. Dealer: Evans Halshaw Vauxhall Kilmarnock in Kilmarnock. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-ead813f10a83
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 41,455 miles. Price: £22,600, £795 less than this car. Dealer: MINI UK at John Clark Aberdeen in Aberdeen. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-5635b313d585
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 42,277 miles. Price: £21,995, £1,400 less than this car. Dealer: John Clark BMW Tayside in Dundee. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-36e0664f391c

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel saloon, grey, 9 miles from this car. Mileage: 94,893 miles. Price: £14,800, £8,595 less than this car. Dealer: Autoever in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-2c30f9d29e2e