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: 40,527 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series M Sport is advertised with 40,527 miles, approximately 18,500 below the typical mileage for its age. The AskCar estimate for this car is £23,110. It is priced at £22,196, which is £914 below that estimate. The AskCar estimate draws on 6,822 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 39 days ago. Its asking price has since fallen by £1,521. Our latest MOT record expired on 1 July 2026. Check the current position with the dealer. Its advertised mileage matches the government's MOT record. The seller is Pentagon Burton, based in Burton-on-Trent. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £914 (3%) under the AskCar estimate of £23,110.

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 6,822 priced BMW 3 Series adverts across different ages and specifications, as of 8 November 2026.

A 2020 BMW 3 Series with the 2.0 diesel engine is typically advertised at £18,500: the median of the 450 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 39 days.

Price history

AskCar first saw this advert on 30 September 2026 at £23,717. Its asking price is now £22,196, £1,521 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 30 September 2026: £23,717
• 6 October 2026: £23,481
• 14 October 2026: £23,086
• 18 October 2026: £22,679
• 27 October 2026: £22,431
• 2 November 2026: £22,196

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: the latest record we hold ran out on 1 July 2026; ask the dealer for the current MOT.

It has had 4 MOTs. The latest, on 5 June 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 36,653 miles, which matches the advertised 40,527 miles.

Advertised mileage is about 18,500 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

38 other 2020 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £13,950 to £24,999, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 41,128 miles. Price: £23,945, £1,749 more than this car. Dealer: David Hayton Autostore Penrith in Penrith. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-85a71ef940d2
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 37,219 miles. Price: £22,200, the same price as this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-ccdc0a113c79
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 44,110 miles. Price: £23,495, £1,299 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, grey, 11 miles from this car. Mileage: 71,299 miles. Price: £18,495, £3,701 less than this car. Dealer: Angus Mackinnon in Uttoxeter. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-3e09a54fbdb4