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 Euro 6 4dr (261 bhp)
• Year: 2020
• Mileage: 74,750 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Colour: Black
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series M Sport is advertised with 74,750 miles, approximately 14,800 above the typical mileage for its age. Priced at £19,000, it is advertised £785 below the AskCar estimate of £19,785. The AskCar estimate uses 6,902 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 9 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Dorset Prestige Cars, based in Dorchester. 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: £785 (3%) under the AskCar estimate of £19,785.

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 9 days.

Price history

AskCar first saw this advert on 28 October 2026 at £19,000. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 20 August 2027.

It has had 6 MOTs. The latest, on 21 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 74,069 miles, which matches the advertised 74,750 miles.

Advertised mileage is about 14,800 miles higher 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 £29,895, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 3.0 diesel saloon, blue. Mileage: 76,000 miles. Price: £19,995, £995 more than this car. Dealer: Igen Autos in Magherafelt. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-d42ef87f11a7
• 2020 BMW 3 Series M Sport, 3.0 diesel saloon, black. Mileage: 77,580 miles. Price: £17,695, £1,305 less than this car. Dealer: V12 Sports & Classics Ltd -Worksop in Worksop. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-b78ccf43c32b
• 2020 BMW 3 Series M Sport, 3.0 diesel saloon, white. Mileage: 66,420 miles. Price: £22,900, £3,900 more than this car. Dealer: Beechwood Prestige in Doncaster. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-1057c87dceb2

• The nearest: 2020 BMW 3 Series M Sport, 3.0 diesel saloon, white, 116 miles from this car. Mileage: 42,102 miles. Price: £20,352, £1,352 more than this car. Dealer: Carsa Towcester in Towcester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-443d159b7951