first of all.. okay coupe first.. in your world maybe thats logicall.. in mine i say bring on the car for gods sake.. sedan coupe anything..

and about the power issue..AMG´s are always more powerfull..
but the M3 is on top for a while with everything.. i mean that with this late release it wont be on top for long as far as power goes..cause the C63 will come out more or less at the same time.. and if we follow tradition the C63 will be more powerfull..and probably faster in a straight line..
hence my first statement..it will be underpowerd vs the competition from START..

PS
now we cant say wich car will be faster for sure.. that we have to wait for..but with most certainty the C63 will have more power than the M3.. and thats fine.. but from the start.. like if they debut at the same time..
hmm i dont know if its so gr8 for the M3´s image