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 4WD Euro 6 4dr (181 bhp)
• Year: 2021
• Mileage: 29,944 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 154 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 29,944 miles, approximately 25,200 below the typical mileage for its age. The AskCar estimate for this car is £23,673. It is priced at £23,995, which is £322 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,902 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records 63 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Agnew Group Bavarian BMW in Belfast. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £322 (1%) over the AskCar estimate of £23,673.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 63 days.

Price history

AskCar first saw this advert on 4 September 2026 at £23,995. 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 6 November 2026: valid until 27 June 2027.

It has had one MOT, on 1 June 2025, and passed.

There were no advisories at the latest test.

Mileage at that test: 24,674 miles, which matches the advertised 29,944 miles.

Advertised mileage is about 25,200 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

143 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £14,000 to £25,975, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 29,874 miles. Price: £24,999, £1,004 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a4dbf913015e
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 29,800 miles. Price: £21,995, £2,000 less than this car. Dealer: Position One Motor Company in Leatherhead. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-5f12409f8231
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 29,666 miles. Price: £19,975, £4,020 less than this car. Dealer: Motorline Direct in Loughborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-082f498b88ff

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey, under a mile from this car. Mileage: 41,312 miles. Price: £21,499, £2,496 less than this car. Dealer: Charles Hurst CUPRA Belfast in Belfast. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-03553b405d24