2021 BMW 3 Series

Overview

Make

BMW

Model

3 Series

Trim

M SPORT

Version

2.0 320i M Sport Auto RWD Euro 6 (s/s) 4dr (181 bhp)

Mileage

52,000 miles

Year

2021

Fuel type

Petrol

Body type

Saloon

Engine

2.0 L

Gearbox

Automatic

Power

181 bhp

Seats

5

CO2

146 g/km

Colour

White

Doors

4

Driven wheels

Rear Wheel Drive

Engine badge

320i

Emissions standard

Euro 6

About this car

At 52,000 miles, this 2021 BMW 3 Series M Sport has covered about 2,700 fewer miles than other 2021 BMW 3 Series cars. Our estimated market asking price is £19,902. This car is advertised at £18,650, which is £1,252 below that figure. Our estimate draws on 6,724 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 72 days ago, and its asking price has since fallen by £1,845. The recorded MOT expired on 27 August 2026, so ask the dealer whether it has been renewed. Its advertised mileage is consistent with the latest recorded MOT reading. The seller is Grainger Motor Group Mantles BYD Royston, based in Royston.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £19,902. The asking price is £1,252 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 6,724 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 2,700 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.