Spy Photos: Mercedes CL65 AMG?

What is this mysterious Mercedes CL-Class prototype recently caught disguised? Quad exhausts and other telltale accoutrements prophisize AMG hardware to come. Could it be a CL65, with twin-turbo V12 producing in the neighborhood of 600+ horsepower? Or could it be a simple Edition series CL63, with its requisite factory kitting? No, we haven't a clue.

[Source: Autoblog.nl via Motor Authority]

Go Ahead, Pimp Mein Auto: AMG Launches New Design Studio, New Limited-Edition Series; Mercedes-Benz S 65 AMG to Premiere in Detroit [internal]