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: 38,655 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

This 2020 BMW 3 Series M Sport is advertised with 38,655 miles, approximately 20,300 below the typical mileage for its age. The AskCar estimate for this car is £21,055. It is priced at £19,458, which is £1,597 below that estimate. 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 saw this car advertised 50 days ago. Its asking price has since fallen by £534. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Stratstone Mercedes-Benz Of Giffnock in Glasgow. 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: £1,597 (7%) under the AskCar estimate of £21,055.

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 50 days.

Price history

AskCar first saw this advert on 13 September 2026 at £19,992. Its asking price is now £19,458, £534 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 13 September 2026: £19,992
• 24 September 2026: £19,828
• 4 October 2026: £19,785
• 15 October 2026: £19,644
• 26 October 2026: £19,458

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 28 February 2027.

It has had 5 MOTs. The latest, on 13 February 2026, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; offside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 34,666 miles, which matches the advertised 38,655 miles.

Advertised mileage is about 20,300 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: 38,342 miles. Price: £21,250, £1,792 more than this car. Dealer: M B Cars London in St Albans. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-822491a7ca58
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 39,123 miles. Price: £21,499, £2,041 more than this car. Dealer: Lookers BMW Stoke-On-Trent in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-726752c54ee8
• 2020 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 37,720 miles. Price: £21,499, £2,041 more than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-d324ff2c1534

• The nearest: 2020 BMW 3 Series M Sport, 2.0 petrol saloon, blue, 5 miles from this car. Mileage: 55,122 miles. Price: £18,998, £460 less than this car. Dealer: Arnold Clark Glasgow Crow Road Volkswagen in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-7bdbd3610245