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: 31,312 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 31,312 miles, this 2021 BMW 3 Series M Sport has covered about 23,800 fewer miles than other 2021 BMW 3 Series cars. The AskCar estimate for this car is £22,435. It is priced at £20,949, which is £1,486 below that estimate. 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 recorded this advert 17 days ago, and its asking price has since fallen by £900. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Motorpoint Burnley, based in Burnley. 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: £1,486 (6%) under the AskCar estimate of £22,435.

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 17 days.

Price history

AskCar first saw this advert on 20 October 2026 at £21,849. Its asking price is now £20,949, £900 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 20 October 2026: £21,849
• 22 October 2026: £21,049
• 3 November 2026: £20,949

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 failed its MOT on 24 July 2026 (front windscreen wiper does not clear the windscreen effectively; offside front headlamp aim too low) and passed later the same day.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge tread on 2mm; nearside front tyre has a cut but not deep enough to reach the ply or cords.

Mileage at that test: 30,013 miles, which matches the advertised 31,312 miles.

Advertised mileage is about 23,800 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

143 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £14,000 to £25,975, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 31,460 miles. Price: £22,370, £1,421 more than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8eb9e5386599
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 31,500 miles. Price: £22,399, £1,450 more than this car. Dealer: Lookers BMW Stafford in Stafford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-adfe708c5ca3
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 31,097 miles. Price: £21,298, £349 more than this car. Dealer: Eastern Western Motor Group Car Deal Warehouse Superstore Newbridge in Edinburgh. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-912205e40b58

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, under a mile from this car. Mileage: 37,603 miles. Price: £20,249, £700 less than this car. Dealer: Motorpoint Burnley in Burnley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-227537a33055