Ok...yesterday after work BMW Dealer delivered me the M. The Assistance Foreman tells me to wait for the BMW Super Mega Tech when I ask him what's happening with my car...the tech arrives and tells me that after testing the car:
that the clunking noise IS NORMAL
About the vibration over 120km/h...was a front left inner seal of the hub bearing broken.
I have two others friends with DCT M3...I meet with one of them this morning for breakfast and ask him to try his car...his 2010 M3 doesn't do the "NORMAL" clunking.
I just talk to my dealer Assistance Foreman and he agree with me saying that it can't be normal, so he already send the sound record to BMW Italy headquarter and see what they say.
Well at least I solved 1 issue...