2021 BMW 3 Series

Overview

Make

BMW

Model

3 Series

Trim

M SPORT

Version

2.0 320d MHT M Sport Auto 4WD Euro 6 (s/s) 4dr (187 bhp)

Mileage

36,844 miles

Year

2021

Fuel type

Diesel Hybrid

Body type

Saloon

Engine

2.0 L

Gearbox

Automatic

Power

187 bhp

Seats

5

CO2

138 g/km

Colour

White

Doors

4

Driven wheels

Four Wheel Drive

Engine badge

320d; MHT

Hybrid type

Mild hybrid

Emissions standard

Euro 6

About this car

At 36,844 miles, this 2021 BMW 3 Series M Sport has covered about 17,700 fewer miles than other 2021 BMW 3 Series cars. Our estimated market asking price is £24,961. This car is advertised at £23,900, which is £1,061 below that figure. 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 £1,000 lower than when we first recorded the advert 21 days ago. Our latest MOT record expired on 8 October 2026. Check the current position with the dealer. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. The seller is Marshall BMW Grimsby, based in Grimsby.

Stock data from 18 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £24,961. The asking price is £1,061 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 17,700 miles lower 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.