2021 BMW M3

Overview

Make

BMW

Model

M3

Trim

COMPETITION

Version

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

Mileage

23,000 miles

Year

2021

Fuel type

Petrol

Body type

Saloon

Engine

3.0 L

Gearbox

Automatic

Power

503 bhp

Seats

5

CO2

232 g/km

Colour

Grey

Doors

4

Gearbox version

Steptronic

Engine badge

BiTurbo

Emissions standard

Euro 6

About this car

This 2021 BMW M3 Competition is advertised with 23,000 miles on the clock. At £52,995, it is advertised £3,066 below our estimated market asking price of £56,061. We use UK dealer asking prices, including 780 BMW M3 listings, and account for the car’s age, mileage and specification. It first appeared in our advert records 56 days ago. Its recorded MOT is valid until 28 May 2027, and its advertised mileage is consistent with the latest MOT reading. It is for sale at The Car Agents in Hitchin.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £56,061. The asking price is £3,066 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 780 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 1,500 miles lower than typical for a 2021 BMW M3.

The advertised mileage is consistent with the last MOT reading.