Car came with 215/55/16 RSA tires, they sucked...would squeel easy and takeoff resulted in spinning them. Put new Toyo proxes FZ4 (v rated) 225/50/16 size on and WOW, what a difference, very noticable handling improvment, no squeel like old RSA's did and they are actually alot harder to spin so it takes off quicker. Very happy and look great, hope they wear well. Treadwear # is actually higher! We will see.