Ok, so let's look at this. I'll start with the GT-R comment. There isn't one in production yet, so anything that is stated about that car, at this point, is speculation, and void. The 911 Turbo can't run with a 'Vette on the track. That's why it's in the GT class. 2013 is 5 years away. Again, speculation, and guessing. There's probably not even a clay model of that car, yet. It's a drawing on a sheet of paper.
I'm all about numbers,and facts. Show me your source for the demographics of the 'Vette owner. Are we talking new buyer, or pre-owned buyer? Different markets, different demographics. And I'm just guessing, but I think your numbers are low.
Back to my posting, you'll notice that I said:
EVERYTHING means EVERYTHING, right? So what happens if you continue on the path that Chevy has done with the 'Vette (standard model to Z06 to the Lingenfelter,Callaway,etc), and what Porsche has done with the 911 (Carrera/Targa to the TT and the GT3), and make a step up from the Z06? What's so stupid about that? Bet you'd sell a few.
I also disagree with your statement that nobody in their right mind who could afford a Ferrari would drive a 'Vette. It happens all the time already. Crank everything up a notch in the 'Vette, along with the price, and you're still going to sell them.
There's a reason that 'Vettes have been around since 1953. Not even Porsche and the 911 can say that. They were here long before you were, and I'll take a guess that they'll be here long after we're both gone.