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: 35,359 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

This 2021 BMW 3 Series M Sport has covered 35,359 miles, around 19,500 fewer miles than is typical for its age. Priced at £23,990, it is advertised £634 above the AskCar estimate of £23,356. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 42 days ago. Its asking price has since fallen by £500. You can find this car at County Specialist Vehicles in Taunton. 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: £634 (2%) over the AskCar estimate of £23,356.

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 42 days.

Price history

AskCar first saw this advert on 24 September 2026 at £24,490. Its asking price is now £23,990, £500 less. The latest price cut was seen on 7 October 2026.

Price changes recorded:

• 24 September 2026: £24,490
• 7 October 2026: £23,990

Mileage and MOT

Advertised mileage is about 19,500 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 £14,495 to £29,990, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol estate, white. Mileage: 34,786 miles. Price: £28,498, £4,508 more than this car. Dealer: Arnold Clark Irvine BMW in Irvine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c70510099d1a
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, grey. Mileage: 37,753 miles. Price: £21,490, £2,500 less than this car. Dealer: Swansway Garages Crewe Volkswagen in Crewe. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-9e91b8d2f332
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, black. Mileage: 39,804 miles. Price: £22,599, £1,391 less than this car. Dealer: Halliwell Jones Southport BMW in Southport. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-65859715219e

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol estate, black, 36 miles from this car. Mileage: 61,100 miles. Price: £24,300, £310 more than this car. Dealer: Colin Ludwell Cars in Bristol. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-143fe5097e0d