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: 36,073 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 36,073 miles, this 2021 BMW 3 Series M Sport has covered about 19,100 fewer miles than other 2021 BMW 3 Series cars. Priced at £18,299, it is advertised £2,444 below the AskCar estimate of £20,743. The AskCar estimate draws on 6,862 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 64 days ago. Its asking price has since fallen by £2,100. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Motorpoint Manchester, based in Manchester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Good value: £2,444 (11%) under the AskCar estimate of £20,743.

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 6,862 priced BMW 3 Series adverts across different ages and specifications, as of 4 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 64 days.

Price history

AskCar first saw this advert on 1 September 2026 at £20,399. Its asking price is now £18,299, £2,100 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 1 September 2026: £20,399
• 8 September 2026: £20,049
• 15 September 2026: £19,599
• 22 September 2026: £19,499
• 29 September 2026: £19,449
• 6 October 2026: £19,349
• 13 October 2026: £19,299
• 20 October 2026: £19,199
• 27 October 2026: £18,849
• 3 November 2026: £18,299

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 24 May 2027.

It has had one MOT, on 25 May 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 35,145 miles, which matches the advertised 36,073 miles.

Advertised mileage is about 19,100 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 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white. Mileage: 36,500 miles. Price: £21,890, £3,591 more than this car. Dealer: Oakley Prestige in Newbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-42d9f16dcbb0
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, blue. Mileage: 35,503 miles. Price: £20,998, £2,699 more than this car. Dealer: Arnold Clark East Kilbride Vauxhall in East Kilbride. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-18c6c5d23ec4
• 2021 BMW 3 Series M Sport, 2.0 petrol saloon, black. Mileage: 35,384 miles. Price: £23,995, £5,696 more than this car. Dealer: A1 Auto Solutions in Maidenhead. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-734cde9507b8

• The nearest: 2021 BMW 3 Series M Sport, 2.0 petrol saloon, white, 4 miles from this car. Mileage: 57,967 miles. Price: £19,895, £1,596 more than this car. Dealer: Motor Range Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3b10cd0945db