2020 BMW 3 Series 3.0 M340i
Price: £27,200. Fair price: £2,000 (6%) under the AskCar estimate of £29,200, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,897 priced BMW 3 Series adverts on AskCar as of 5 November 2026.
AskCar lists 7,194 used BMW 3 Series from 2,714 UK dealerships, as of 5 November 2026.
Overview
- Make: BMW
- Model: 3 Series
- Version: 3.0 M340i Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
- Year: 2020
- Mileage: 59,490 miles
- Fuel: Petrol
- Body: Saloon, 4 doors, 5 seats
- Engine: 3.0 litres, 369 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: White
- CO2: 162 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2020 BMW 3 Series has covered 59,490 miles. Its asking price of £27,200 is £2,000 below the AskCar estimate of £29,200. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 12 days ago. Its asking price has since fallen by £1,900. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall BMW Salisbury, based in Salisbury. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £2,000 (6%) under the AskCar estimate of £29,200.
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.
A 2020 BMW 3 Series with the 3.0 petrol engine is typically advertised at £27,500: the median of the 61 for sale on AskCar, as of 5 November 2026.
Time on sale
This 2020 BMW 3 Series has been on sale for at least 12 days.
Price history
AskCar first saw this advert on 24 October 2026 at £29,100. Its asking price is now £27,200, £1,900 less. The latest price cut was seen on 30 October 2026.
Price changes recorded:
- 24 October 2026: £29,100
- 27 October 2026: £28,500
- 30 October 2026: £27,200
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 28 February 2027.
It has had 5 MOTs. The latest, on 19 February 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 54,737 miles, which matches the advertised 59,490 miles.
Advertised mileage is about 100 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.
Browse all BMW 3 Series cars for sale · 2020 BMW 3 Series price guide
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Photos
32 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.