2021 BMW 3 Series

Overview

Make

BMW

Model

3 Series

Version

3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)

Mileage

66,457 miles

Year

2021

Fuel type

Diesel Hybrid

Body type

Saloon

Engine

3.0 L

Gearbox

Automatic

Power

335 bhp

Seats

5

CO2

160 g/km

Colour

Blue

Doors

4

Driven wheels

Four Wheel Drive

Engine badge

M340d; MHT

Hybrid type

Mild hybrid

Emissions standard

Euro 6

About this car

With 66,457 miles on the clock, this 2021 BMW 3 Series has done roughly 12,000 more miles than a typical 2021 BMW 3 Series. The dealer is asking £19,995, which is £5,770 below our market estimate of £25,765. Our estimate draws on 6,783 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. The asking price is now £2,000 lower than when we first recorded the advert 103 days ago. Our latest MOT record expired on 8 September 2026. Check the current position with the dealer. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. The seller is Top Gear Harrow, based in Harrow.

Stock data from 18 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £25,765. The asking price is £5,770 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 6,783 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 12,000 miles higher than typical for a 2021 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

The recorded MOT has expired; ask the dealer for an up-to-date MOT.