Look out for the front sway bar, they like to snap on the ends. I found that out when I bought my GP, and a quick trip to the junkyard showed that EVERY OTHER SWAY BAR WAS BROKEN TOO!
Also, get a steel LIM gasket as one of your first fixes, and metal coolant elbows. That should prevent future coolant leaks.
I'm not in the milwaukee area, but I'm near appleton. If there's ever a car show or something and you're in the area, hit me up. Welcome to the site!
Also, other common problems (from what I hear) is window motor regulators, HUD dimming issues, and definitely valve cover gaskets - check out this thread for some other ideas of what to check for (I wish I had read this BEFORE buying my GP lol): http://www.grandprixforums.net/threa...ommon-problems
