Regal Rims

I've got a friend who's got a late 90's Pontiac. I think it's either a Grand Prix, or a Grand AM. I can't remember 100%. It's got the factory rims on it, and I'm wondering if they will fit my 1999 Regal. They both have the same tire size (16"), I'm just not sure if they are the same offset, and if they will clear my calipers.

Check the bolt pattern first. 115mm X 5. If that is good then the best thing to do is try them on since wheel offset varies.