Hello I have 20" rim on my SC400. Bought the car with the rims already on. They are size 245/35/20 and I was wondering if that is the correct size for 20" on an SC.
Someone said it may be the wrong offset and I think at times it rubs against part of the suspension on the inside of the wheelwell. If they are the wrong size can someone please correct me so I can put on the right size rim?

 

If the rims/tires are rubbing on the suspension the offset is way too high. I would go with some 18's or 19's with a lower offset, which will space the wheel away from the suspension.