2021 BMW 3 Series 3.0 M340i MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340i MHT Touring Auto 4WD Euro 6 (s/s) 5dr (369 bhp)
• Year: 2021
• Mileage: 80,000 miles
• Fuel: Petrol, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 369 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 182 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series is advertised with 80,000 miles, approximately 25,200 above the typical mileage for its age. The AskCar estimate for this car is £27,199. It is priced at £28,990, which is £1,791 above that estimate. The AskCar estimate draws on 6,822 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records 164 days ago. The seller is Sell Your Car, based in High Wycombe. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,791 (6%) over the AskCar estimate of £27,199.

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 6,822 priced BMW 3 Series adverts across different ages and specifications, as of 8 November 2026.

A 2021 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,400: the median of the 146 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £28,990. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 25,200 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.