2020 BMW 3 Series 3.0 M340i

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340i Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
• Year: 2020
• Mileage: 19,980 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 369 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 162 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 3 Series is advertised with 19,980 miles, approximately 39,000 below the typical mileage for its age. Its asking price of £35,495 is £774 below the AskCar estimate of £36,269. The AskCar estimate draws on 6,742 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 20 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Hailsham BMW, based in Hailsham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £774 (2%) under the AskCar estimate of £36,269.

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 6,742 priced BMW 3 Series adverts across different ages and specifications, as of 2 November 2026.

A 2020 BMW 3 Series with the 3.0 petrol engine is typically advertised at £27,800: the median of the 61 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 BMW 3 Series has been on sale for at least 20 days.

Price history

AskCar first saw this advert on 13 October 2026 at £35,995. Its asking price is now £35,495, £500 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 13 October 2026: £35,995
• 20 October 2026: £35,895
• 28 October 2026: £35,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 1 March 2027.

It has had 5 MOTs. The latest, on 3 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 17,912 miles, which matches the advertised 19,980 miles.

Advertised mileage is about 39,000 miles lower than the median mileage of a 2020 BMW 3 Series on AskCar.