Originally Posted by BMW M Power Mexico
I wouldn't go that much staggered. You will probably get too much understeer but of course balance is a matter of taste and personal preference. Your temps are normal.
if you plan on tracking the car and want to buy rims for the purpose instead of just for show, get square setup. It will eliminate the understeer that the car has and give you a lot more "bite" turning in.
however that's just my .02