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 4WD Euro 6 (s/s) 5dr Touring (187 bhp)
• Year: 2020
• Mileage: 45,526 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series M Sport is advertised with 45,526 miles, approximately 14,100 below the typical mileage for its age. The AskCar estimate for this car is £22,624. It is priced at £21,790, which is £834 below that estimate. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 161 days ago, the asking price has dropped by £2,200. Our records show an MOT expiry date of 31 August 2026, which has passed. Ask the dealer for an update. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at West Brook Car Sales in Peterborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £834 (3%) under the AskCar estimate of £22,624.

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 6,897 priced BMW 3 Series adverts across different ages and specifications, as of 5 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 5 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £23,990. Its asking price is now £21,790, £2,200 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 28 May 2026: £23,990
• 5 October 2026: £23,400
• 15 October 2026: £22,490
• 28 October 2026: £21,990
• 4 November 2026: £21,790

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 31 August 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 1 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 42,468 miles, which matches the advertised 45,526 miles.

Advertised mileage is about 14,100 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 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel estate, blue. Mileage: 46,000 miles. Price: £22,695, £905 more than this car. Dealer: Matt Johnson Prestige in Barrow-in-Furness. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-00b82a53b46d
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 46,134 miles. Price: £22,999, £1,209 more than this car. Dealer: Fresh Motors in Watton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-67e4287775e8
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 44,110 miles. Price: £23,495, £1,705 more than this car. Dealer: Williams Bmw Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-c3806ca5580d

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel estate, white, 10 miles from this car. Mileage: 47,579 miles. Price: £20,995, £795 less than this car. Dealer: Sycamore Stamford in Stamford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-b8d8a8495996