2020 BMW 3 Series 3.0 330d M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 3.0 330d M Sport Auto 4WD Euro 6 (s/s) 4dr (261 bhp)
• Year: 2020
• Mileage: 35,470 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 35,470 miles, this 2020 BMW 3 Series M Sport has covered about 24,500 fewer miles than other 2020 BMW 3 Series cars. The AskCar estimate for this car is £28,453. It is priced at £29,895, which is £1,442 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,902 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 28 days ago. Its asking price has since fallen by £100. We checked its advertised mileage against the government's MOT record, and they match. The seller is Group 1 Cambridge BMW, based in Cambridge. 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: £1,442 (5%) over the AskCar estimate of £28,453.

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 3.0 diesel engine is typically advertised at £28,000: the median of the 63 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 28 days.

Price history

AskCar first saw this advert on 9 October 2026 at £29,995. Its asking price is now £29,895, £100 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 9 October 2026: £29,995
• 14 October 2026: £29,990
• 21 October 2026: £29,995
• 29 October 2026: £29,895

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 13 August 2027.

It failed its MOT on 5 August 2026 (rear fog lamp not working) and passed later the same day.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing; offside front tyre slightly damaged/cracking or perishing; nearside rear nail in tyre.

Mileage at that test: 33,654 miles, which matches the advertised 35,470 miles.

Advertised mileage is about 24,500 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

8 other 2020 BMW 3 Series M Sport 3.0 diesel automatic saloons are for sale at UK dealers, from £17,695 to £22,900, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 3.0 diesel saloon, black. Mileage: 33,890 miles. Price: £22,499, £7,396 less than this car. Dealer: Motorpoint Edinburgh in Edinburgh. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-6523380545b1
• 2020 BMW 3 Series M Sport, 3.0 diesel saloon, white. Mileage: 42,102 miles. Price: £20,352, £9,543 less than this car. Dealer: Carsa Towcester in Towcester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-443d159b7951
• 2020 BMW 3 Series M Sport, 3.0 diesel saloon, black. Mileage: 58,420 miles. Price: £20,995, £8,900 less than this car. Dealer: V12 Sports & Classics Ltd -Worksop in Worksop. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-a89ec99cc9d4