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: 53,444 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 2021 BMW 3 Series M Sport is advertised with 53,444 miles on the clock. The AskCar estimate for this car is £19,617. It is priced at £19,395, which is £222 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. We first recorded this advert 45 days ago, and its asking price has since fallen by £600. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Motor Trust UK Garstang in Preston. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £222 (1%) under the AskCar estimate of £19,617.

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 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 7 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 45 days.

Price history

AskCar first saw this advert on 23 September 2026 at £19,995. Its asking price is now £19,395, £600 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 23 September 2026: £19,995
• 7 October 2026: £19,495
• 27 October 2026: £19,395

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 28 April 2027.

It failed its MOT on 29 April 2026 (nearside front tyre tread depth below requirements of 1.6mm 225-40-19; offside rear tyre tread depth below requirements of 1.6mm 255-35-19; nearside rear tyre has ply or cords exposed 255-35-19) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 49,729 miles, which matches the advertised 53,444 miles.

Advertised mileage is about 1,700 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

142 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £13,750 to £25,975, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 53,203 miles. Price: £17,999, £1,396 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-79d89a401a93
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 52,840 miles. Price: £17,991, £1,404 less than this car. Dealer: Cardiff Trade Sales in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bdb376ab0c4f
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 54,437 miles. Price: £20,499, £1,104 more than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3a2e12458c14

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white, 6 miles from this car. Mileage: 3,973 miles. Price: £23,499, £4,104 more than this car. Dealer: HPL Preston in Preston. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c4238e72a5eb