2020 BMW 3 Series 3.0 M340i

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340i Touring Auto 4WD Euro 6 (s/s) 5dr (369 bhp)
• Year: 2020
• Mileage: 27,195 miles
• Fuel: Petrol
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 369 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series has covered 27,195 miles, around 32,100 fewer miles than is typical for its age. Priced at £34,950, it is advertised £2,162 below the AskCar estimate of £37,112. The AskCar estimate uses 6,886 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 43 days ago. Its asking price has since fallen by £1,000. The government's MOT record matches its advertised mileage. You can find this car at Wollaston BMW in Northampton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,162 (5%) under the AskCar estimate of £37,112.

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 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 7 November 2026.

A 2020 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,000: the median of the 65 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 43 days.

Price history

AskCar first saw this advert on 25 September 2026 at £35,950. Its asking price is now £34,950, £1,000 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 25 September 2026: £35,950
• 27 October 2026: £34,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 15 August 2027.

It has had 6 MOTs. The latest, on 13 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 26,798 miles, which matches the advertised 27,195 miles.

Advertised mileage is about 32,100 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.