18 inchs up front, 19 inchs rear
 

maybe a dumb question but has anyone done this double staggered set up, 18x8 wheels up front with 255/45-tires and 19x9.5 set out back with 275/40 tires? im wondering if i will have something looking super stupid and driving like major crap or would this be a very good balance of looks and handling? fyi the 18s are 23lbs and 19s are 27lbs...please chime in

as long as the overall tire size is with in 3% or so, i.e. both tires have about the same routations per mile(its on the tire normaly) you should be fine, but if the rears are alot bigger then the fronts you will gets ABS failure lights.

They do it stock on the vettes and its not really noticeable to me. I havent seen anyone do it on a stang though.

gt40 has em
 

http://www.mustangmotorsport.com.au/ford_gt/ford_gt.php

for austraila runs similar set up