2020 BMW 3 Series 2.0 320i M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)
• Year: 2020
• Mileage: 34,500 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 34,500 miles on the clock, this 2020 BMW 3 Series M Sport has done roughly 25,200 fewer miles than a typical 2020 BMW 3 Series. The dealer is asking £20,595, which is £908 below the AskCar estimate of £21,503. To work out the AskCar estimate, we analyse UK dealer adverts for 6,862 BMW 3 Series cars across different ages and specifications. We have tracked this advert for 1 day. The government's MOT record matches its advertised mileage. It is for sale at Riviera Automotive in Cleckheaton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £908 (4%) under the AskCar estimate of £21,503.

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 6,862 priced BMW 3 Series adverts across different ages and specifications, as of 4 November 2026.

A 2020 BMW 3 Series with the 2.0 petrol engine is typically advertised at £18,500: the median of the 461 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2020 BMW 3 Series advertised 1 day ago. About half of 2020 BMW 3 Series cars are gone from sale within a month of being advertised: 330 of the 691 first advertised between 7 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £20,595. 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 4 November 2026: valid until 24 September 2027.

It has had 3 MOTs. The latest, on 25 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 34,215 miles, which matches the advertised 34,500 miles.

Advertised mileage is about 25,200 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

101 other 2020 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £12,999 to £25,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 35,500 miles. Price: £20,130, £465 less than this car. Dealer: Big Motoring World Enfield in Enfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-fed947517a1f
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 35,880 miles. Price: £20,350, £245 less than this car. Dealer: Group 1 Brighton MINI in Brighton and Hove. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-2d762c299bc6
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 36,000 miles. Price: £24,995, £4,400 more than this car. Dealer: Alpine Performance Cars in Hinckley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-02c43223d72f

• The nearest: 2020 BMW 3 Series M Sport, 2.0 petrol saloon, blue, 14 miles from this car. Mileage: 36,257 miles. Price: £20,999, £404 more than this car. Dealer: Hpl Barnsley in Barnsley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-767b23b2c8fc