Does the new generation CLS arrive in North America as a 2011 or 2012 model?

When will the cars first be available for purchase and received by the new owners?

Will a 63 version be introduced at the same time as the 350 and 550?

Thanks!

2012--2011s are already here.

The AMG engine will be new and will be a turbo 5.5 instead of the naturally aspirated 6.3.