The tyre size totally depends on the offset of your wheels? My 03 sport has mag wheels fitted by the dealer and the offset they chose limits me to 245x75x16 (metric) tyres which sucks but the mags do look cool. depending on the offset on you wheels you can try to increase the size but be careful because the first thing to indicate you went too far is your rear tyre sidewall rubbing against a bolt head... I've seen some pretty big wheels on them though but all with with different offsets. Hope that helps?