GTR is the best bang for the buck, vipers are not easy to drive fast if so they would dominate the streets vettes are nice.
EDIT:
MSRP for Z06- $75.000
MSRP for GTR-$89,000
for $14,000 LESS its hard to argue against the Vette IMO
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oh and the vette gets better highway Gas Mileage LOL
Like Chad said the GTR comes with supercar maintanence, Z06, not so much. Its a chevy.
GTR is much more sophisticated, much more refined.
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