911 Turbo wasn't as nimble as I thought it would be. granted it was a 996 and not the 997. But I haven't heard of it being radically different albeit radically EXPENSIVE! I'd much rather look forward to a few 10/10's laps in the Z06, that stance and footprint reminds of an LMP.
As for the car doing most of the driving for you like the Nissan. I'm not so sure that's a bad thing. Going that fast in a car with that much oopmh is fun no matter how you slice it. And the average non-professional driver will rarely get close enough to the limit to even know what its like to miss the last few tenths that automation will rob you of taking credit for.
and I'm sure reliability for Nissan will squash that of the Chevy and the expensive to fix German.
p.s. I'll take the Audi R8 over either of the three. Looks like Bugatti Veyron(sp?)
at 1/10 the price. The others look like glorified version of their entry level models.
You have to look close to tell the difference between their entry level versions.
p.s.s
this thread needs pics