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: 39,447 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 369 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 176 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series has covered 39,447 miles, around 15,700 fewer miles than is typical for its age. Its asking price of £32,490 is £240 below the AskCar estimate of £32,730. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. It first appeared in our advert records 163 days ago. The seller is Monaco Motorsports, based in Bolton. 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: £240 (under 1%) under the AskCar estimate of £32,730.

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 2021 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,300: the median of the 148 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 163 days.

Price history

AskCar first saw this advert on 28 May 2026 at £32,490. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 15,700 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.