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 (s/s) 5dr Touring (187 bhp)
• Year: 2020
• Mileage: 85,439 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 85,439 miles on the clock, this 2020 BMW 3 Series M Sport has done roughly 26,400 more miles than a typical 2020 BMW 3 Series. The AskCar estimate for this car is £17,088. It is priced at £15,395, which is £1,693 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,742 BMW 3 Series cars across different ages and specifications. The asking price is now £3,095 lower than when we first recorded the advert 122 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Group 1 Assured Wirral in Wallasey. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Good value: £1,693 (9%) under the AskCar estimate of £17,088.

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 6,742 priced BMW 3 Series adverts across different ages and specifications, as of 2 November 2026.

A 2020 BMW 3 Series with the 2.0 diesel engine is typically advertised at £18,500: the median of the 448 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 122 days.

Price history

AskCar first saw this advert on 3 July 2026 at £18,490. Its asking price is now £15,395, £3,095 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 3 July 2026: £18,490
• 16 July 2026: £17,495
• 23 July 2026: £17,250
• 29 July 2026: £16,995
• 6 August 2026: £16,850
• 11 August 2026: £16,995
• 19 August 2026: £16,850
• 25 August 2026: £16,650
• 5 September 2026: £16,495
• 22 September 2026: £16,250
• 26 September 2026: £16,100
• 1 October 2026: £15,750
• 6 October 2026: £15,495
• 17 October 2026: £16,500
• 20 October 2026: £15,995
• 21 October 2026: £15,695
• 27 October 2026: £15,500
• 1 November 2026: £15,395

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 22 January 2027.

It has had 4 MOTs. The latest, on 14 January 2026, passed.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 79,379 miles, which matches the advertised 85,439 miles.

Advertised mileage is about 26,400 miles higher than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

36 other 2020 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £9,500 to £24,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel estate, blue. Mileage: 86,900 miles. Price: £18,495, £3,100 more than this car. Dealer: CWF Vehicles Sales in Wotton-under-Edge. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-4e8286fb4c0f
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, blue. Mileage: 79,661 miles. Price: £18,999, £3,604 more than this car. Dealer: Wearside Autoparc in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-5054c607634a
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 79,000 miles. Price: £19,000, £3,605 more than this car. Dealer: BWC Used Cars Telford in Telford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-9908819cae23

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel estate, white, 7 miles from this car. Mileage: 34,782 miles. Price: £22,995, £7,600 more than this car. Dealer: JRP Autos in Bebington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-baaaec8124ca