What do you mean when you say that you feel everything with a car tire? In western North Carolina, there are a lot of grooved roads to help with the weather. The tread on my stock tires handle this well, no moving side to side, but with my Honda VTX 1300, the tread goes in the opposite direction and boy do you feel the grooves and movement. Is this what you feel with the car tire as the treads are similar to the VTX?