You realize that the prius bit was a bit of a hyperbolic jab, right? and funny because it isn't that far off.
So many people around here completely mis-interpret anything next to my user name, that I just want to make it bluntly clear.
The serious question is the last line... what is the killer improvement that would make anyone want to wait for a C7 rather than buying a used C6 for a heck of a lot less money right now? Or make someone, with a nice C6 already, want to trade up?