As an owner of an M340i Touring, a true M was not an option (yet!).
I think Audi’s naming convention is better where they have the S-line styling and trim on the standard models and then the S and RS models. Just seems more logical than BMW. Prefixing the M feels like an afterthought.
Regardless of the name, I love the car though. A comfortable family estate car that can hit 60mph in a fraction over 4 seconds