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: 43,000 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

This 2021 BMW 3 Series M Sport has covered 43,000 miles, around 11,800 fewer miles than is typical for its age. The dealer is asking £20,985, which is £1,175 above the AskCar estimate of £19,810. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. We have tracked this advert for 23 days. Its advertised mileage matches the government's MOT record. It is advertised by Brooklands Motor Centre in Leeds. 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: £1,175 (5%) over the AskCar estimate of £19,810.

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

This 2021 BMW 3 Series has been on sale for at least 23 days.

Price history

AskCar first saw this advert on 13 October 2026 at £20,985. 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 25 March 2027.

It has had 3 MOTs. The latest, on 26 March 2026, passed.

Advisories at the latest test: nearside rear brake disc worn, but not excessively; offside rear brake disc worn, but not excessively.

Mileage at that test: 42,314 miles, which matches the advertised 43,000 miles.

Advertised mileage is about 11,800 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, blue. Mileage: 42,772 miles. Price: £20,490, £495 less than this car. Dealer: Lloyd Colne BMW in Colne. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-29e51ca83ee4
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 42,772 miles. Price: £20,490, £495 less than this car. Dealer: Lloyd Colne BMW in Colne. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3181735f1e81
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 42,558 miles. Price: £20,850, £135 less than this car. Dealer: Norwich Van Centre in Norwich. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bef621b969da

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, 2 miles from this car. Mileage: 64,163 miles. Price: £18,399, £2,586 less than this car. Dealer: Stratstone Bmw Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-6a54dbe4f0b5