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 4dr (187 bhp)
• Year: 2020
• Mileage: 56,740 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 139 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series M Sport is advertised with 56,740 miles, approximately 3,300 below the typical mileage for its age. The dealer is asking £20,990, which is £992 above the AskCar estimate of £19,998. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. We first recorded this car for sale 109 days ago. Our records show an MOT expiry date of 30 October 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. The seller is 4Kay Motors, based in Heywood. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £992 (4%) over the AskCar estimate of £19,998.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

A 2020 BMW 3 Series with the 2.0 diesel engine is typically advertised at £18,500: the median of the 462 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 109 days.

Price history

AskCar first saw this advert on 20 July 2026 at £19,990. Its asking price is now £20,990, £1,000 more.

Price changes recorded:

• 20 July 2026: £19,990
• 30 September 2026: £21,490
• 3 November 2026: £20,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 30 October 2026; ask the dealer for the current MOT.

It has had 4 MOTs. The latest, on 31 October 2025, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 54,221 miles, which matches the advertised 56,740 miles.

Advertised mileage is about 3,300 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

68 other 2020 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £10,290 to £23,977, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 56,516 miles. Price: £17,320, £3,670 less than this car. Dealer: Carsa Mountsorrel in Mountsorrel. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e0c3cf1743a3
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 57,727 miles. Price: £19,400, £1,590 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-02ac51fb06fa
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 55,000 miles. Price: £22,000, £1,010 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

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel saloon, orange, 3 miles from this car. Mileage: 23,604 miles. Price: £23,550, £2,560 more than this car. Dealer: cartime Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-c47e550dacce