On my Zetec swapped 98 Wagon and with my suspension upgraded with new front CA poly bushings, Moog swaybar bushings, 21 mm rear bar, Poly rack mounts and KYB struts and progressive springs, the tires are really showing thier limitations. There doesn't seem to be any good performance tire in the 14 inch sizes anymore ( I had Bridgestone Pole positions for my 93 wagon and they were great). With the bad streets here in Chicago, I figured going up to 15 was probably as far as I want to got to avoid tire and rim Damage. What the widest anyone has gone without rolling the fenders. I think Neuspeed did 215's but not sure without rolled fenders. It appears only Goodyear has 215-50 15.