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: 55,112 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 55,112 miles on the clock, this 2020 BMW 3 Series M Sport has done roughly 3,900 fewer miles than a typical 2020 BMW 3 Series. Priced at £17,466, it is advertised £1,483 below the AskCar estimate of £18,949. The AskCar estimate draws on 6,822 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 61 days ago, the asking price has dropped by £1,424. Its advertised mileage matches the government's MOT record. The seller is Richmond Motor Group Geely Portsmouth, based in Fareham. 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: £1,483 (7%) under the AskCar estimate of £18,949.

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 petrol 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 61 days.

Price history

AskCar first saw this advert on 8 September 2026 at £18,890. Its asking price is now £17,466, £1,424 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 8 September 2026: £18,890
• 6 October 2026: £18,333
• 25 October 2026: £17,995
• 6 November 2026: £17,466

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 31 August 2027.

It has had 5 MOTs. The latest, on 20 August 2026, passed.

Advisories at the latest test: front registration plate deteriorated but not likely to be misread.

Mileage at that test: 54,835 miles, which matches the advertised 55,112 miles.

Advertised mileage is about 3,900 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

95 other 2020 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £12,999 to £25,895, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 55,122 miles. Price: £18,998, £1,532 more than this car. Dealer: Arnold Clark Glasgow Crow Road Volkswagen in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-7bdbd3610245
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 55,324 miles. Price: £18,295, £829 more than this car. Dealer: Motor Range Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-956072c410dd
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 55,520 miles. Price: £19,220, £1,754 more than this car. Dealer: Hippo Approved in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-f8344db37152

• The nearest: 2020 BMW 3 Series M Sport, 2.0 petrol saloon, blue, 6 miles from this car. Mileage: 39,852 miles. Price: £20,786, £3,320 more than this car. Dealer: Carsa Southampton in Southampton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-95343d604176