I haven't driven the ///M2 but have heard great things about it.
I cannot forget the recent Cayman S I drove. It was such an intoxicating car that yelled in my ear the entire time to break the law
My only complaint was the same issue I had with the ///M4: good direct steering that lacks "feel." The previous cars transmitted every groove and pebble in the road surface to my finger tips and it was magical.