foresta size likely to rub on spring perch in rear. likelihood depends on sidewall profile of tire--for instance square shoulder tires like Yokohams likely to rub, rounded shape like RE92 less likely
the diameter is probably more of an issue. more than about 5% diff in diameter tends to confuse ABS computer, ECU, etc. larger diameter is like having taller gearing -- maybe OK for gas mileage but sucky for sporty driving (slower acel), taller stance makes for tippy feeling on the road.
DG
part time Tire Cop