Z’s also have parts that sit lower than the bumper and skirts(not like a miata bumper though). You can fit wide wheels with negative offsets, the problems you will encounter are in the front with the control arms hitting the body, hence the hole i cut for mine to get a little more travel. And the tire hitting the body of the car, depending on the height of your tire.
I think i will be going with a shorter tire in the front next time i get tires, because mine hits all the time.