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: 39,804 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 153 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 39,804 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 15,300 fewer miles than a typical 2021 BMW 3 Series. Its asking price of £22,599 is £141 below the AskCar estimate of £22,740. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 23 days ago. Its asking price has since fallen by £400. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Halliwell Jones Southport BMW, based in Southport. 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: £141 (under 1%) under the AskCar estimate of £22,740.

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 23 days.

Price history

AskCar first saw this advert on 14 October 2026 at £22,999. Its asking price is now £22,599, £400 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 14 October 2026: £22,999
• 21 October 2026: £22,899
• 27 October 2026: £22,799
• 30 October 2026: £22,699
• 4 November 2026: £22,599

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 23 July 2027.

It has had 4 MOTs. The latest, on 24 July 2026, passed.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing; offside front tyre slightly damaged/cracking or perishing.

Mileage at that test: 38,951 miles, which matches the advertised 39,804 miles.

Advertised mileage is about 15,300 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

30 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 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol estate, grey. Mileage: 40,356 miles. Price: £23,450, £851 more than this car. Dealer: Sytner Maidenhead BMW in Maidenhead. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-dc1f5a4329eb
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, blue. Mileage: 40,368 miles. Price: £26,900, £4,301 more than this car. Dealer: Berry Heathrow in Heathrow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-9be1f7737268
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, grey. Mileage: 40,500 miles. Price: £29,990, £7,391 more than this car. Dealer: Exoria Cars in St Albans. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-ef3f55ff0098

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol estate, white, 10 miles from this car. Mileage: 27,830 miles. Price: £22,895, £296 more than this car. Dealer: Motor Range Liverpool in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-999bc345017a