2021 BMW M3

Overview

Make

BMW

Model

M3

Trim

COMPETITION

Version

3.0 BiTurbo Competition Steptronic Euro 6 (s/s) 4dr (503 bhp)

Mileage

4,000 miles

Year

2021

Fuel type

Petrol

Body type

Saloon

Engine

3.0 L

Gearbox

Automatic

Power

503 bhp

Seats

5

Colour

Grey

Doors

4

Gearbox version

Steptronic

Engine badge

BiTurbo

Emissions standard

Euro 6

About this car

At 4,000 miles, this 2021 BMW M3 Competition has covered about 21,000 fewer miles than other 2021 BMW M3 cars. The dealer is asking £69,950, which is £6,468 above our market estimate of £63,482. To estimate its market asking price, we analyse UK dealer adverts for 775 BMW M3 cars across different ages and specifications. We have tracked this advert for 145 days. You can find this car at Signature Car Group in Rochford.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £63,482. The asking price is £6,468 above 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 775 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 21,000 miles lower than typical for a 2021 BMW M3.