18x7.5" is the wrong size and will prolly not work. If you want them that bad you wil havd to cut the fenderwells, roll the lips, move suspension components, and really just drive carefully.
18x7" 42-44mm offset with 215/35x18" tires barely fit and is the correct size. But the other thing you have to consider is that 2-3 of my 15" tires cost the same as one of your 18" tires.
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