The phantom is cavernous, I've sat in a few and man, the interior literally swallows you whole, and I'm 6'6". I don't know that I'd like to drive one of these things, but I'd love to sit in the back and be chauffered all day long.... but I have heard that they are great to drive, interstingly enough.
I'll save two hundred g's and stroll in an S63, happily...