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: 34,704 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 34,704 miles, this 2021 BMW 3 Series M Sport has covered about 20,400 fewer miles than other 2021 BMW 3 Series cars. Priced at £21,500, it is advertised £457 below the AskCar estimate of £21,957. To work out the AskCar estimate, we analyse UK dealer adverts for 6,862 BMW 3 Series cars across different ages and specifications. It first appeared in our advert records today. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Stoneacre in Rotherham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £457 (2%) under the AskCar estimate of £21,957.

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 6,862 priced BMW 3 Series adverts across different ages and specifications, as of 4 November 2026.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised today. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 418 of the 887 first advertised between 10 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £21,500. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 19 September 2027.

It has had 3 MOTs. The latest, on 18 September 2026, passed.

Advisories at the latest test: brake pad(s) wearing thin all brake pads worn close to wear indicator; offside rear tyre worn close to legal limit/worn on edge; nearside front track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt; and 2 more.

Mileage at that test: 33,489 miles, which matches the advertised 34,704 miles.

Advertised mileage is about 20,400 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

146 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £14,000 to £26,950, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 34,884 miles. Price: £21,495, the same price as this car. Dealer: Skinners Of Rye in Rye. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-6b14e1d20ad7
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 34,314 miles. Price: £20,799, £701 less than this car. Dealer: Motorpoint Newport in Newport. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-e96c45f510e7
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 34,300 miles. Price: £21,250, £250 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-05fc549b938f