I know you guys only want to go to 18 or 19'' wheels but what i found was to go to 19'' on the front and 20'' on the rear just gave it that better look as it is just such a big ass car that it really needed that bigger tire to give it the right look. I went with 19'' buy 8.5'' on the front and 20'' buy 8.5'' on the rear. I dont exactly remember the tire sizes I went with as the car is put away for the winter at another facility and i cant just run out and get the numbers but they werent very big and were probably only about 3 and half inches fron the rim lip to the outside of the tire. A good tire shop will allow you to tire a couple of differnt tires on those rims in order to get the right look. Good luck guys | 
