88's can take 205/45R16's but you'll haev to lower the car to make it look any good also the roads in ISB are ok butif you intend on taking it to RWP you'll no doubt bend the rims eventually.
you're better off going for 15's if you want big rims, the benefits are that you'll have almost the same amount of latteral grip, better ride comfort, less load on your bearings, better acceleratin due to less unsprung weight (when compared to 16's)