Well, actually from a pretty reliable source but anyway, here they are:

1. SL facelift does not get the SLR nose like the new SLK, the facelift will be a "mild" one, hardly visible.
2. The new ML63 AMG gets a 476 HP normally aspirated engine.
3. It is still not clear if there will be a more powerful engine version above the current CL/SL/S65 engines, rumours indicated a 660-700 HP engine a while ago.