I've been to the dealer twice to check it out also, I havent heard it like you, but sat in it and checked out that engine bay, it is nice looking under the hood.
The ls1 camaros have thier engine tucked way under the cowl, the trucks aren't as bad, but the gto has the engine sitting right in the middle and isn't under the hood at all, very nice to work on!!
While looking at the engine, the salesman said, "ya, and it comes with 100K mile plugs and antifreeze" i was like wtf, lmao, i said i'd be pulling the cam within the first 5K miles, he just looked at me funny. haha.
Also, i didn't know they had the mechanical cable driven TB, being an 04, i'd thought they'd have drive by wire setup on them, of course the sales dork said "oh ya, it has traction control too" hahaha, he had no clue what i was talking about. one more funny, he of course said "we can get you into this", i said i was waiting for an 05 and i wanted an auto, get this, he had no clue they were available as an auto, hahaha.
ok, really one more and that's it, they had a yellow one there, and wtf again, they put two black sticker racing stripes on it, omfg, and they were crooked, it look very stupid!!
I'll be getting an 05 as soon as they are available, i can't wait,
allen