KresoF1:

Faster where? In straight line? Lets wait for first tests...

On the track? I do not think so.

BTW, E63 engine is bigger in displacement then PTS or RS6 Avant engines. 7 Speed auto bix that AMG is using is not in the same leagues as PDK in PTS or 8 speed auto in RS6 Avant.

I would personally choose PTS or RS6 Avant any time over new E63 AMG S.

100% correct. The only advantage the Mercedes has is its low price. If you have the money, the Panamera turbo S is the better and faster car.