2021 BMW 3 Series 2.0 318i M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 318i M Sport Auto RWD Euro 6 (s/s) 4dr (154 bhp)
• Year: 2021
• Mileage: 29,666 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 154 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 29,666 miles, this 2021 BMW 3 Series M Sport has covered about 25,200 fewer miles than other 2021 BMW 3 Series cars. Priced at £19,975, it is advertised £1,466 below the AskCar estimate of £21,441. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 5 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Motorline Direct in Loughborough. 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: £1,466 (6%) under the AskCar estimate of £21,441.

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

AskCar first saw this 2021 BMW 3 Series advertised 5 days ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 429 of the 907 first advertised between 10 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 31 October 2026 at £19,975. 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 5 November 2026: valid until 2 June 2027.

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

Advisories at the latest test: front tyre worn close to legal limit/worn on edge offside and nearside wearing on edges of tread areas of tyres.

Mileage at that test: 28,562 miles, which matches the advertised 29,666 miles.

Advertised mileage is about 25,200 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 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 29,800 miles. Price: £21,995, £2,020 more than this car. Dealer: Position One Motor Company in Leatherhead. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-5f12409f8231
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 29,874 miles. Price: £24,999, £5,024 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a4dbf913015e
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, grey. Mileage: 29,944 miles. Price: £23,995, £4,020 more than this car. Dealer: Agnew Group Bavarian BMW in Belfast. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-10d6b7a55764

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, 12 miles from this car. Mileage: 51,848 miles. Price: £21,500, £1,525 more than this car. Dealer: Sytner Leicester BMW in Leicester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-f42cdc6218b7