I don't get it. Is this for sales metrics (don't care) or actual badging (care)?
A previous poster asked is a M340 going to be badged M3? Is that the case? That's silly, but the naming does track Mercedes. C43 (Amg enhanced engine) and S63 (handcrafted AMG). Different classes, both AMG, but one is and one isn't. You can only tell if your read details in marketing material. I guess BMW is going that way.
Uninitiated won't notice things missing like M diff, cross bolted main bearing caps, closed deck cylinder heads, bigger turbos, cross bank exhaust manifold, more oil, more oil pickups, true super stiff M chassis, track days WOT and oil temp staying at 250, 6 piston calipers, well, you get the point. It will just irritate those who do.