yeah well...........
we also have a new 2011 Callaway Grand Sport might be a little higher then your 80k limit, but it's a badass car. They take a Grand Sport, 6 speed with a dry sump LS3, Z51 suspension, put a TVS 2300 blower on it, nicer wheels, and sell you that with all the warranty from GM rated at 606hp. Of course if you want to go over budget the Callaway Z06 with the Carbon package that we have is a ZR1 killer. Having never driven a GT-R I'm obviously biased, but you owe it to yourself to come see all the Vettes on our lot.