2021 BMW M3

Overview

Make

BMW

Model

M3

Trim

COMPETITION

Version

3.0 Competition Auto Euro 6 (502 bhp)

Mileage

45,000 miles

Year

2021

Fuel type

Petrol

Engine

3.0 L

Gearbox

Automatic

Power

502 bhp

Seats

5

Emissions standard

Euro 6

About this car

This 2021 BMW M3 Competition is advertised with 45,000 miles, approximately 20,500 above the typical mileage for its age. At £54,971, it is advertised £1,423 above our estimated market asking price of £53,548. The estimate uses 780 UK dealer adverts for the BMW M3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 96 days ago. It is for sale at G-Force Motors in Barnsley.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £53,548. The asking price is £1,423 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 780 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 20,500 miles higher than typical for a 2021 BMW M3.