Very interesting indeed. It looks like they may have done away with the 1 series' cute/feminine proportions. I've been interested in purchasing an M4 when available, but the M2 is starting to turn the gears in my head. I'm looking for something a bit more pure than the M4 I think.
BTW this is exactly what's happening with Porsche. The Cayman S is becoming what the 911 used to be - a purist driver's car, while the 911 is becoming bloated. Looks like the M2 may be that purist car that we haven't seen from BMW since the E46.