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 4dr (187 bhp)
• Year: 2020
• Mileage: 23,633 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 23,633 miles, this 2020 BMW 3 Series M Sport has covered about 36,000 fewer miles than other 2020 BMW 3 Series cars. Its asking price of £22,499 is £1,686 below the AskCar estimate of £24,185. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 71 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is HPL Preston, based in Preston. 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: £1,686 (6%) under the AskCar estimate of £24,185.

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 71 days.

Price history

AskCar first saw this advert on 26 August 2026 at £22,499. 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 5 November 2026: valid until 5 August 2027.

It has had 4 MOTs. The latest, on 22 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 23,157 miles, which matches the advertised 23,633 miles.

Advertised mileage is about 36,000 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

66 other 2020 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £9,990 to £23,977, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, orange. Mileage: 23,604 miles. Price: £23,550, £1,051 more than this car. Dealer: cartime Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-c47e550dacce
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 23,864 miles. Price: £23,660, £1,161 more than this car. Dealer: Evans Halshaw Vauxhall Horsforth in Horsforth. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-b0ecc753621b
• 2020 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 29,847 miles. Price: £23,977, £1,478 more than this car. Dealer: Select Motor Trading in Warrington. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-660f845bbba3

• The nearest: 2020 BMW 3 Series M Sport, 2.0 diesel saloon, white, 9 miles from this car. Mileage: 87,000 miles. Price: £15,995, £6,504 less than this car. Dealer: Junction 6 Motors in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-56c03a728bc0