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: 78,628 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 78,628 miles, approximately 18,600 above the typical mileage for its age. The AskCar estimate for this car is £17,975. It is priced at £17,950, which is £25 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. Since we first spotted the advert 99 days ago, the asking price has dropped by £1,000. Our latest MOT record expired on 20 August 2026. Check the current position with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Gormley Car Sales in Maghera. 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: £25 (under 1%) under the AskCar estimate of £17,975.

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 2.0 diesel engine is typically advertised at £18,500: the median of the 462 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 99 days.

Price history

AskCar first saw this advert on 30 July 2026 at £18,950. Its asking price is now £17,950, £1,000 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 30 July 2026: £18,950
• 29 August 2026: £18,850
• 8 September 2026: £18,695
• 18 September 2026: £18,495
• 10 October 2026: £18,250
• 20 October 2026: £17,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 20 August 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 21 August 2024, passed.

There were no advisories at the latest test.

Mileage at that test: 59,453 miles, which matches the advertised 78,628 miles.

Advertised mileage is about 18,600 miles higher 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 6 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 79,000 miles. Price: £19,000, £1,050 more than this car. Dealer: BWC Used Cars Telford in Telford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-9908819cae23
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 78,000 miles. Price: £19,995, £2,045 more than this car. Dealer: The Car Barns in Welford-on-Avon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-36d999d59caf
• 2020 BMW 3 Series M Sport, 2.0 diesel estate, blue. Mileage: 79,661 miles. Price: £18,999, £1,049 more than this car. Dealer: Wearside Autoparc in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-5054c607634a

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel estate, blue, 15 miles from this car. Mileage: 51,248 miles. Price: £22,995, £5,045 more than this car. Dealer: Mid Ulster Cars in Cookstown. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-246a81990ff4