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) 5dr Touring (181 bhp)
• Year: 2021
• Mileage: 57,596 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 153 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 57,596 miles, this 2021 BMW 3 Series M Sport has covered about 2,800 more miles than other 2021 BMW 3 Series cars. The AskCar estimate for this car is £20,568. It is priced at £21,890, which is £1,322 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,822 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records 1 day ago. Its advertised mileage matches the government's MOT record. It is for sale at Your Best Car (Bucks) in Marlow. 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: £1,322 (6%) over the AskCar estimate of £20,568.

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.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised 1 day ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 436 of the 927 first advertised between 10 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £21,890. 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 8 November 2026: valid until 31 July 2027.

It failed its MOT on 31 July 2026 (nearside rear outer tyre has a cut in excess of the requirements deep enough to reach the ply or cords 255 35 19 RFT; offside rear inner tyre has a cut in excess of the requirements deep enough to reach the ply or cords 255 35 19 RFT) and passed 1 day later, on 1 August 2026.

There were no advisories at the latest test.

Mileage at that test: 55,315 miles, which matches the advertised 57,596 miles.

Advertised mileage is about 2,800 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

29 other 2021 BMW 3 Series M Sport 2.0 petrol automatic estates are for sale at UK dealers, from £13,995 to £29,990, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol estate, black. Mileage: 59,362 miles. Price: £22,000, £110 more than this car. Dealer: Sytner Shrewsbury BMW in Shrewsbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-abcd5735acbc
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, black. Mileage: 59,741 miles. Price: £22,690, £800 more than this car. Dealer: Stratstone Bmw Harrogate in Harrogate. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a3ed73c9820a
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, white. Mileage: 54,700 miles. Price: £22,000, £110 more than this car. Dealer: Colin Ludwell Cars in Bristol. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4469730be8a4

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol estate, grey, 7 miles from this car. Mileage: 40,356 miles. Price: £23,450, £1,560 more than this car. Dealer: Sytner Maidenhead BMW in Maidenhead. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-dc1f5a4329eb