LS4 Performance - wheels

So i was at the lq the other day and i looked over and there is this pontiac aztek parked next to us. i look at its wheels and i was surprised they look very similar to the alcoas except there not polished. theyre 17x6.5s, but might make a good set of winter wheels, or if widened a decent set of track wheels. what do you guys think?
http://www.wheelcollision.com/wccpix/6551.JPG

i think the back space was off on them or something like that, cant remember. i thought the same thing years ago with my old GTP. the do have the same bolt pattern 5 lug 4.53 inch or 115mm

lug pattern is right. couldnt find much info on them other than size. the aztek club and forum members dont seem very knowledgeable. best i could find is that they are interchangeable with grand prix wheels.