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: 51,848 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 51,848 miles, this 2021 BMW 3 Series M Sport has covered about 3,000 fewer miles than other 2021 BMW 3 Series cars. The dealer is asking £21,500, which is £1,698 above the AskCar estimate of £19,802. To work out the AskCar estimate, we analyse UK dealer adverts for 6,822 BMW 3 Series cars across different ages and specifications. This car was first seen in our listings data 8 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Leicester BMW, based in Leicester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,698 (8%) over the AskCar estimate of £19,802.

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 6,822 priced BMW 3 Series adverts across different ages and specifications, as of 8 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 31 October 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 8 November 2026: valid until 8 April 2027.

It has had 4 MOTs. The latest, on 19 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 35,701 miles, which matches the advertised 51,848 miles.

Advertised mileage is about 3,000 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

144 other 2021 BMW 3 Series M Sport 2.0 petrol automatic saloons are for sale at UK dealers, from £13,750 to £25,975, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 51,700 miles. Price: £19,990, £1,510 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-1cf346fd03dc
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 51,678 miles. Price: £19,990, £1,510 less than this car. Dealer: Prestige Cars Of Essex in Harlow. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d6c46f7e87be
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 52,100 miles. Price: £20,500, £1,000 less than this car. Dealer: Colin Ludwell Cars in Bristol. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-493fbe4eed48

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, 2 miles from this car. Mileage: 69,947 miles. Price: £18,999, £2,501 less than this car. Dealer: CG Motor Land in Leicester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-ccf0d606ac51