best bet is 195s. when i bought my 15s, they had 205/45/15 on and scrubbed a little. now ive got 195/50/15 toyo t1-r s and they dont scrub. almera gti alloys :) also, the 195/50/15 toyo t1-r is the cheapest thing you can buy thats any good! £35 odd quid on demontweeks, and theyre epic!