Thats a nice styling concept you have! It incorporates some very classic design ques without looking like another retro vehicle. Good job.
I am not sure Pontiac wil make it look as sports-car like as your concept, but I do imagine they will spice it up a lot when they move to the Zeta platform.
I like the current GTO too, although I think I am in the minority. Pictures make it look basically like an old 2 door Grand Prix, but it is rather short and wide in person and does have a nice stance to it. Its not outwardly aggressive, but it does look like there might be more there than meets the eye. I like the understated look of the car. But I'll take a more aggressive one too!