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: 54,691 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

This 2021 BMW 3 Series M Sport has covered 54,691 miles. The dealer is asking £19,240, which is £1,574 below the AskCar estimate of £20,814. 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 recorded this advert 49 days ago, and its asking price has since fallen by £950. Its advertised mileage matches the government's MOT record. The seller is Big Motoring World Cannock, based in Cannock. 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: £1,574 (7%) under the AskCar estimate of £20,814.

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 49 days.

Price history

AskCar first saw this advert on 17 September 2026 at £20,190. Its asking price is now £19,240, £950 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 17 September 2026: £20,190
• 18 September 2026: £20,180
• 19 September 2026: £20,210
• 20 September 2026: £20,180
• 22 September 2026: £20,120
• 25 September 2026: £20,110
• 26 September 2026: £20,080
• 27 September 2026: £20,040
• 29 September 2026: £20,090
• 30 September 2026: £20,120
• 1 October 2026: £20,110
• 3 October 2026: £20,150
• 6 October 2026: £20,110
• 7 October 2026: £20,100
• 8 October 2026: £20,080
• 9 October 2026: £20,070
• 10 October 2026: £20,340
• 13 October 2026: £20,320
• 14 October 2026: £20,300
• 16 October 2026: £19,930
• 21 October 2026: £20,160
• 27 October 2026: £19,940
• 31 October 2026: £19,440
• 5 November 2026: £19,240

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 12 June 2027.

It has had 3 MOTs. The latest, on 2 June 2026, passed.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt; rear brake pad(s) wearing thin; nearside rear tyre worn close to legal limit/worn on edge 2-3mm 255/40R18Y.

Mileage at that test: 52,880 miles, which matches the advertised 54,691 miles.

Advertised mileage is about 100 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: 54,700 miles. Price: £22,000, £2,760 more than this car. Dealer: Colin Ludwell Cars in Bristol. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4469730be8a4
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, blue. Mileage: 52,870 miles. Price: £20,250, £1,010 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3374642d7d9a
• 2021 BMW 3 Series M Sport, 2.0 petrol estate, black. Mileage: 59,362 miles. Price: £22,000, £2,760 more than this car. Dealer: Sytner Shrewsbury BMW in Shrewsbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-abcd5735acbc

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol estate, blue, 8 miles from this car. Mileage: 40,953 miles. Price: £21,499, £2,259 more than this car. Dealer: Lookers BMW Stafford in Stafford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4b1908ca165e