I have raced and owned every gen of Viper since 1994.Facts are facts for 70 grand you have to respect the technology and performance of the Z06.(I have no hands on experience with the NISSAN so i not qualifted to even have an opinion)The Z06 has parts in it (Alum frame ,dry sump oiling ,titanium rods, forged pistons that Srt would love to put in the new Vipers but cant (too expensive )to bash it just because you dont own one or like something else better does not float in my book.You should also realize alot of people on this forum owned Vetts(myself included) before there ever was a Viper and still own Vetts along with their Vipers.