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: 57,700 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series M Sport is advertised with 57,700 miles on the clock. Its asking price of £17,650 is £1,154 below the AskCar estimate of £18,804. The AskCar estimate uses 6,742 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 144 days ago, and its asking price has since fallen by £1,640. Its advertised mileage matches the government's MOT record. It is advertised by Select Car Superstore in Peterborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,154 (6%) under the AskCar estimate of £18,804.

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 6,742 priced BMW 3 Series adverts across different ages and specifications, as of 2 November 2026.

A 2020 BMW 3 Series with the 2.0 petrol engine is typically advertised at £18,500: the median of the 448 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 144 days.

Price history

AskCar first saw this advert on 11 June 2026 at £19,290. Its asking price is now £17,650, £1,640 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 10 July 2026: £19,290
• 11 August 2026: £19,000
• 20 August 2026: £18,990
• 22 August 2026: £18,445
• 27 August 2026: £18,345
• 10 September 2026: £18,291
• 27 September 2026: £18,250
• 2 October 2026: £17,999
• 11 October 2026: £17,850
• 29 October 2026: £17,650

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 9 April 2027.

It has had 6 MOTs. The latest, on 2 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 55,885 miles, which matches the advertised 57,700 miles.

Advertised mileage is about 1,300 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

98 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 2 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 58,000 miles. Price: £18,600, £950 more than this car. Dealer: Alistair Buchan in East Wemyss. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e4c08020440b
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 58,162 miles. Price: £18,475, £825 more than this car. Dealer: The Car Co in Bury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-20241b07f4c5
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 58,328 miles. Price: £18,895, £1,245 more than this car. Dealer: Motor Range Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-fba88ffa77bc

• The nearest: 2020 BMW 3 Series M Sport, 2.0 petrol saloon, blue, 15 miles from this car. Mileage: 61,400 miles. Price: £17,490, £160 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-a84368683617