The tires are not rubbing and the car is at factory height. I am riding on 235/45 ZR Pirelli rubber. I think it maybe the ZR tires. On the autobahn it rides smooth. At 50-120MPH it is smooth. It is that 0-45 that is rough. It is just at slower speeds that I feel it. I don't feel it in the steering wheel. It is almost like when you have a truck with mud tires type feel.