I don't understand these threads. You're asking us to compare a supercharged M3 (something very few of us have any experience with) to a car that doesn't even exist yet. The specs aren't even finalized. How can you expect a meaningful discussion?
'16 Cayman GT4 (delivery pics
Gone but not forgotten:
'11.75 M3 E92 Le Mans | Black Nov w/ Alum | 6MT (owned 5/2011 - 11/2015)