2021 BMW M3

Overview

Make

BMW

Model

M3

Trim

COMPETITION

Version

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

Mileage

15,816 miles

Year

2021

Fuel type

Petrol

Body type

Saloon

Engine

3.0 L

Gearbox

Automatic

Power

503 bhp

Seats

5

CO2

230 g/km

Colour

Black

Doors

4

Gearbox version

Steptronic

Engine badge

BiTurbo

Emissions standard

Euro 6

About this car

At 15,816 miles, this 2021 BMW M3 Competition has covered about 9,200 fewer miles than other 2021 BMW M3 cars. Its asking price of £58,290 is £21 below our estimate of £58,311. We use UK dealer asking prices, including 777 BMW M3 listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 35 days ago, the asking price has dropped by £1,200. MOT records show an expiry date of 3 September 2027, and the latest recorded mileage is consistent with the advert. The seller is Stratstone BMW Tunbridge Wells, based in Tunbridge Wells.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £58,311. The asking price is £21 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 777 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 9,200 miles lower than typical for a 2021 BMW M3.

The advertised mileage is consistent with the last MOT reading.