2021 BMW 3 Series 3.0 M340i MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
• Year: 2021
• Mileage: 64,950 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 369 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 176 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series has covered 64,950 miles. The dealer is asking £29,249, which is £1,462 above the AskCar estimate of £27,787. To work out the AskCar estimate, we analyse UK dealer adverts for 6,905 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 132 days ago. Its asking price has since fallen by £700. The advertised mileage is lower than the latest MOT reading of 65,519 miles. Check this with the dealer. Its MOT is recorded as valid until 23 June 2027. The seller is Paragon Cars London, based in Watford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,462 (5%) over the AskCar estimate of £27,787.

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 6,905 priced BMW 3 Series adverts across different ages and specifications, as of 11 November 2026.

A 2021 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,300: the median of the 149 for sale on AskCar, as of 11 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 132 days.

Price history

AskCar first saw this advert on 2 July 2026 at £29,949. Its asking price is now £29,249, £700 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 3 July 2026: £29,949
• 13 October 2026: £29,749
• 23 October 2026: £29,449
• 7 November 2026: £29,249

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 11 November 2026: valid until 23 June 2027.

It has had 3 MOTs. The latest, on 24 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 65,519 miles. The advert says 64,950 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 10,300 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.