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) (369 bhp)
• Year: 2021
• Mileage: 63,000 miles
• Fuel: Petrol, mild hybrid
• Body: 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 has covered 63,000 miles, around 7,900 more miles than is typical for its age. The dealer is asking £30,950, which is £1,377 above the AskCar estimate of £29,573. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. It first appeared in our advert records today. Its advertised mileage matches the government's MOT record. The seller is MINI UK at Stratstone Harrogate, based in Harrogate. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,377 (4%) over the AskCar estimate of £29,573.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,500: the median of the 146 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised today. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 433 of the 918 first advertised between 10 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £30,950. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 2 April 2027.

It failed its MOT on 25 March 2026 (nearside front outer tyre has a bulge, caused by separation or partial failure of its structure) and passed 2 days later, on 27 March 2026.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 54,968 miles, which matches the advertised 63,000 miles.

Advertised mileage is about 7,900 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.