The ZR-1 is of a higher spec than the Grand Sport is. The Grand Sport is between the Z06 and the base and the ZR1 is above the Z06 (obviously) so the ZR1 is going to be the most we're going to get. Definitely can't buy anything close to their motorsports styled vehicles though unfortunately.
I think they'll come out with something similar to another Grand Sport kinda ordeal. If they do come out with something GT3 or GT2 it won't be street legal at all.
Well that depends on how bad they want to build the Corvettes image and at this rate they almost have to come out with something potent for the street. Times have changed and the same high performance trims aren't enough.
They definitely do not. Even the new C7 ZR1 is going to prove to be enough for what's going on now. The C7 generation was a success and it's evident with the amount of them you see driving around. The new ZR1 that's coming out before they start building the next generation is going to be beastly.