I not being a nissan nut hugger Tim when i say you really cant compare the ZR-1 to the GT-R. You should really compare the GT-R to the C6Z06.. and then if you want to compare the ZR-1 to the GT-R V-Spec. 80 more hp and lighter.. soo.... we will have to wait and see what teh V-Spec really can do when it comes out.