2020 BMW 3 Series 3.0 M340i Sport

Price: £30,699. Fair price: £1,524 (5%) over the AskCar estimate of £29,175, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,902 priced BMW 3 Series adverts on AskCar as of 6 November 2026.

AskCar lists 7,204 used BMW 3 Series from 2,726 UK dealerships, as of 6 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: Sport
  • Version: 3.0 M340i Sport Auto 4WD Euro 6 4dr (368 bhp)
  • Year: 2020
  • Mileage: 56,834 miles
  • Fuel: Petrol
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 3.0 litres, 368 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Black
  • CO2: 185 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 56,834 miles, this 2020 BMW 3 Series Sport has covered about 3,200 fewer miles than other 2020 BMW 3 Series cars. The AskCar estimate for this car is £29,175. It is priced at £30,699, which is £1,524 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 5 days ago. Its asking price has since fallen by £800. The government's MOT record matches its advertised mileage. It is for sale at Lookers BMW Stoke-On-Trent in Stoke on Trent. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,524 (5%) over the AskCar estimate of £29,175.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

A 2020 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,000: the median of the 63 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2020 BMW 3 Series advertised 5 days ago. About half of 2020 BMW 3 Series cars are gone from sale within a month of being advertised: 342 of the 714 first advertised between 7 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 1 November 2026 at £31,499. Its asking price is now £30,699, £800 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

  • 1 November 2026: £31,499
  • 2 November 2026: £30,699

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 23 June 2027.

It has had 5 MOTs. The latest, on 27 May 2026, passed.

Advisories at the latest test: rear brake pad(s) wearing thin; rear brake disc worn, but not excessively.

Mileage at that test: 51,561 miles, which matches the advertised 56,834 miles.

Advertised mileage is about 3,200 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.

Similar cars

12 other 2020 BMW 3 Series Sport 3.0 petrol automatic saloons are for sale at UK dealers, from £26,495 to £37,950, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2020 BMW 3 Series Sport, 3.0 petrol saloon, grey. Mileage: 53,000 miles. Price: £32,495, £1,796 more than this car. Dealer: Fitzroy Motor Co in Ringwood. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-b547d4a47a6b
  • 2020 BMW 3 Series Sport, 3.0 petrol saloon, grey. Mileage: 66,990 miles. Price: £27,950, £2,749 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-71d3b011b00e
  • 2020 BMW 3 Series Sport, 3.0 petrol saloon, grey. Mileage: 46,500 miles. Price: £31,995, £1,296 more than this car. Dealer: Riviera Automotive in Cleckheaton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-bcb0f484d05e
  • The nearest: 2020 BMW 3 Series Sport, 3.0 petrol saloon, grey, 28 miles from this car. Mileage: 69,323 miles. Price: £26,495, £4,204 less than this car. Dealer: Penguin Cars in Shrewsbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2020-e4f391f5070b

Browse all BMW 3 Series cars for sale · 2020 BMW 3 Series price guide

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Photos

8 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.