I dont know how to anwser this but by saying i did not know that GM FWD had 2 different bolt patterns on one car. So your saying that GM FWD cars are 8 lug? anwser me that
and as for the rest of that nonsence that you wrote, you got me with the 5x115 “fitting” on a 5x4.5 car but saddly its still a no no. You for the life of the car will allways have a slight unfixable shimmy in the wheel because the wheels are .7mm off and the only way you might (20% of the time) get rid of that is to use a hub ring. Better yet some people because they are not the correct fitment for the car even break a stud while trying to put them on. So tommarow big boy when sell the WRONG wheels and putting the WRONG wheels on some ones car, and you break a stud hence making your self look like more the tard you allready are. Saying " they will fit " dont come on hear wondering where you should go to get a new stud.