Well....I think it depends...I will agree that the Mustang and G35 are close in hp, but not in torque.
However, doing a race from a roll I'm sure the G35 will do better than from a stop. I don't doubt that the Mustang will win, but here's a quote from Car and Driver's site for the G35 6MT Sedan "Standing 1/4 mile: 13.9 sec@ 103 mph". So imagine the Coupe will have to be slightly faster.
http://www.caranddriver.com/roadtest...ecs-page4.html
Anyways...I'm not trying to thread jack....so back to the subject.
I REALLY hope we see a 400hp+ Camaro with similar Mustang pricing(even a few grand to blow the doors off a Mustang is worth it).