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: 57,523 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 154 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 57,523 miles, approximately 2,700 above the typical mileage for its age. The AskCar estimate for this car is £18,168. It is priced at £17,190, which is £978 below that estimate. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 2 days ago. Its advertised mileage matches the government's MOT record. The seller is Evans Halshaw Omoda Jaecoo Gainsborough, based in Gainsborough. 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: £978 (5%) under the AskCar estimate of £18,168.

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 2 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 3 November 2026 at £17,170. Its asking price is now £17,190, £20 more.

Price changes recorded:

• 3 November 2026: £17,170
• 4 November 2026: £17,190

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 16 September 2027.

It has had 3 MOTs. The latest, on 16 September 2026, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; offside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 55,250 miles, which matches the advertised 57,523 miles.

Advertised mileage is about 2,700 miles higher 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: 57,833 miles. Price: £20,998, £3,808 more than this car. Dealer: Arnold Clark Stirling Volvo / GWM / BYD in Stirling. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-e089a124ef46
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 57,094 miles. Price: £18,899, £1,709 more than this car. Dealer: Eastern Western Motor Group Car Deal Warehouse Stirling in Stirling. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2b6d4f121f3f
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 57,967 miles. Price: £19,895, £2,705 more than this car. Dealer: Motor Range Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3b10cd0945db

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white, 15 miles from this car. Mileage: 27,320 miles. Price: £23,495, £6,305 more than this car. Dealer: V12 Sports & Classics Ltd -Worksop in Worksop. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bd13162028a1