I imagine they'd look OK with the proper wheel/tire sizing and a bit of lowering, but be aware that you won't be able to get them in the 5x120mm bolt pattern. You may not be able to get them with an adequate amount of backspacing, either. You'd have to call up AR and check.
Do a search... AR dosen't make a bolt battern/offset to fit the car. That said I was ga-ga about the same wheels (had em on my 01 Camaro SS) but they just don't work on the GTO. Don't look good at all.
Me....I'm waiting till next years wheels come out. I have been told that Foose will be making their Nitrous grays in the GTO bolt pattern and offset. They are kinda similar to those AR's. I had thought about the AR's until I found out they are not in our bolt pattern.