What is Rim Offset and Backspacing? How Do They Affect Fitment? - The Truth About Tires | Tire Rack
You'll need to measure the backspacing. When armed with measurements, it will be much easier for a vendor to help you.
It will vary from wheel to wheel depending how the spokes are designed which is why an 18 like the the advan tc3, even in higher offsets, can clear gtr brakes
while the rpf1 cannot.
As mike mentioned, a lot of autocross guys like forgestars.