I moved the set of tires in the front w/ radial pull to the back. The car used to drift or pull to the right before. It solved the drift problem on the freeway and I was quite happy. HOWEVER... then when the car hits and small bumps..... the steering wheel kind of move to the right. When I hard brake, its seems that the sometimes it pulls to the right too. I have an old honda, and none of these affect the honda. I drive on the exact same road and the steering wheel does not even move on that bumpy road while the m3's steering wheel moved to the right. Is this a symptom of radial pull in the back or is this how RWD cars handel bumpy roads????