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: 56,286 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 154 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 56,286 miles. Priced at £18,955, it is advertised £653 above the AskCar estimate of £18,302. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 19 days ago. Its advertised mileage matches the government's MOT record. The seller is Hippo Motor Group Peterborough, based in Peterborough. 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: £653 (3%) over the AskCar estimate of £18,302.

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 19 days.

Price history

AskCar first saw this advert on 17 October 2026 at £18,955. 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 15 September 2027.

It has had 5 MOTs. The latest, on 15 September 2026, passed.

Advisories at the latest test: offside rear child seat fitted not allowing full inspection of adult belt; nearside front brake pad(s) wearing thin; offside front brake pad(s) wearing thin; and 2 more.

Mileage at that test: 55,644 miles, which matches the advertised 56,286 miles.

Advertised mileage is about 1,500 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, white. Mileage: 56,280 miles. Price: £19,999, £1,044 more than this car. Dealer: Ron Skinner & Sons (Tredegar) in Tredegar. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-ac8a6962b702
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 56,900 miles. Price: £18,995, the same price as this car. Dealer: Auto Bazaa in Enfield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7a52bb8f8445
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 57,094 miles. Price: £18,899, £56 less 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

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black, 4 miles from this car. Mileage: 46,147 miles. Price: £19,400, £445 more than this car. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-795ec98b5ad9