I actually don't think the spoiler looks that bad (of course I own an '88 Fiero GT with an even bigger spoiler, so that gives you a frame of reference). To me, integrated spoilers remind me too much of Camaro's.
I'll agree it needs hood scoops. What's a GTO without hood scoops? Even the Grand Am has hood scoops now!
Split the exhausts to both sides. I know it really has true duals, but make it LOOK like it!
Add some character lines to the body, and it will look less like a Honda jellybean. An '04 was sitting at a light facing me just off Woodward this summer and my Mopar buddy actually noticed the car before I did. It blends in like it's a generic coupe.
Keep the dual grills, but shorten the height and set them back or surround them with trim to set them off.
Unfortunately, a real Pontiac engine will NEVER happen (I'm taking all bets on this one). I work with GM Powertrain Engineering every day and there is no such thing anymore, and probably never will be. Tooling has all been scrapped. In a few more years, only 2 V8 platforms will exist (Chevy small block & Caddy Northstar). Heck, Pontiac Engineering doesn't even exist anymore.
I will, however, jump at the chance to test drive one as soon as they're more available.
John