IMO GM should have just released the Holden Monaro in the US as a Holden Monaro, or at least a Pontiac Monaro or something, because the new GTO is essentially just that. I think there would have been quite a bit of interest for a Monaro in the US if it had of been marketed properly. The Hoden Monaro CV8 is an excellent car and I think US buyers would have seen that. The only real problem is US design restrictions and such, as well as left hand drive which is pretty easy to fix.
I find it funny that a classic American muscle car like the GTO is now essentially an Aussie car thats being built and designed in Australia.
If they really wanted to resurrect the GTO badge, they should have had a whole new car to do it. It just seems like some idea some guy in a suit had.