2021 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: 2021
• Mileage: 56,280 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 56,280 miles on the clock. The AskCar estimate for this car is £19,297. It is priced at £19,999, which is £702 above that estimate. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 94 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Ron Skinner & Sons (Tredegar), based in Tredegar. 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: £702 (3%) over the AskCar estimate of £19,297.

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.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 94 days.

Price history

AskCar first saw this advert on 3 August 2026 at £20,499. Its asking price is now £19,999, £500 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 4 August 2026: £20,499
• 31 October 2026: £19,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 25 November 2026.

It has had 2 MOTs. The latest, on 11 November 2025, passed.

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

Mileage at that test: 48,309 miles, which matches the advertised 56,280 miles.

Advertised mileage is about 1,400 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

146 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £14,000 to £26,950, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 56,286 miles. Price: £18,955, £1,044 less than this car. Dealer: Hippo Motor Group Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-093977257541
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 56,900 miles. Price: £18,995, £1,004 less than this car. Dealer: Auto Bazaa in Enfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7a52bb8f8445
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 57,094 miles. Price: £18,899, £1,100 less than this car. Dealer: Eastern Western Motor Group Car Deal Warehouse Stirling in Stirling. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2b6d4f121f3f

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white, 21 miles from this car. Mileage: 34,314 miles. Price: £20,799, £800 more than this car. Dealer: Motorpoint Newport in Newport. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-e96c45f510e7