i wanted to get 17's but not sure if it will tuck, how low must i drop my car in order for the rim to just barely tuck? i wont need to drop it that much since the rim is bigger right? and what offset will work best for a sedan so it will tuck? and also 18x7 or 18x7.5? please help...

i have coilovers right now riding on 15 stock gsr rims, its pretty much slammed, i think its down to like almost 4 inches on both front and back, wonder what a 4 inch drop with my coilovers would look like if i had 17 or 18's on my car...

this is the kind of drop i want on 17's or 18's with coilovers, wll this be possible with skunk2 coilovers. here's a pic to descrive the drop i want, how the rims tuck under the fender just a little bit, or where it the top part of the rim just sits on the bottom of the fender is how i want.