im purchasing some 16 in gt3's i was wondering if i should get 205 40 R16
or 205 45 R16? i wasnt sure if the 40's would make the wheel look too small, im also lowering my car as much as possible after the wheels are on

 

get the 45's. 40's are mainly used for a 17" rim. i had 50's on my old 16" rims and liked them but if i had a choice, id go with the 205/45r16