I just looked at the insides of the 1M. The engine says "Powered by BMW M". It does not have the ///M badge and is not exclusive to the M Division. Hopefully BMW do not dilute the M Division this way because the engine from the present M3 is not present in a non-M car and the same applies to the old M5/6 with the V10.
I am saddened to see that BMW are going the Mercedes way & are not going to have exclusive M engines. I guess the company does what is best for their bottom line. My E92 M3 may end up being my last M car....