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 4WD Euro 6 4dr (181 bhp)
• Year: 2021
• Mileage: 42,445 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 154 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 42,445 miles, around 12,700 fewer miles than is typical for its age. The dealer is asking £23,499, which is £1,519 above the AskCar estimate of £21,980. 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 car for sale 9 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Albans Motors in Hatfield. 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: £1,519 (6%) over the AskCar estimate of £21,980.

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 9 days.

Price history

AskCar first saw this advert on 28 October 2026 at £23,499. 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 6 November 2026: valid until 18 November 2027.

It has had 3 MOTs. The latest, on 23 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 42,443 miles, which matches the advertised 42,445 miles.

Advertised mileage is about 12,700 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, black. Mileage: 42,440 miles. Price: £21,000, £2,499 less than this car. Dealer: Sytner Harold Wood BMW in Harold Wood. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8b1b2b00655d
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 42,558 miles. Price: £20,450, £3,049 less than this car. Dealer: Norwich Van Centre in Norwich. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bef621b969da
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 42,772 miles. Price: £20,490, £3,009 less than this car. Dealer: Lloyd Colne BMW in Colne. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-29e51ca83ee4

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, under a mile from this car. Price: £20,945, £2,554 less than this car. Dealer: Go Specialists Car Sales in Hatfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-016931fb47a1