ideal sizes for 16s would be a 16 x 7 rim (fronts) with 215/45/16 or 205/45/16 and a 16 x 8 rim with 225/45/16 in the rears..u can try to fit 235s or 245s or 255s in the rears but depending on ur suspension setup u will have rubbing issues and will have to roll the fenders....i have 245/45/16s on an 8" wide rim and it rubs (on h&r springs and trust adj. shocks)....
on a side note....spend a few hours and browse thru all the old posts....most of the answers ur looking for u will be able to find..welcome to TN and enjoy driving and owning an mr2.....
on a side note....spend a few hours and browse thru all the old posts....most of the answers ur looking for u will be able to find..welcome to TN and enjoy driving and owning an mr2.....