G'day folks: I'm thinking about upgrading my stock 16" alloys to 17" rims but before I do, I would like to know what is the maximum tire size I can put on front / rear or what is the best combination? I'm looking for the maximum rubber contact for the best traction. Also, should I go 17" or 18" ??? Thanks to all replies! Serge M. 97 E36 328i ------------------------------