I need some opinions are 18 inch rims to much for a cruze? Or should I stick with 16 inch rims? Also if I do decide on 18's will I have to do any modifications to the car?

so my cruze was in a little accident with a curb not to long ago on a really cold and snowy day, and one 2 of my steelies bent so i decided to get new rims because new steelies were like 90 bucks for the gm ones. so i decided to get the RTX TREK rims which are really light they are like 16.2lbs...