Here is my problem/concern. I drive an 01' E-shift. I put the car into reverse, to back out of a parking space for instance, and then drive forward normally. When I apply the brakes after driving forward, i hear a loud "clunk" coming from what sounds like the front brakes. What is this noise? I have a feeling that it is normal, as I have heard it on my girlfriends Acura 3.2 tl also. But, i also drive a BMW 323i, and i have never heard this sound from that car. Is this a characteristic of Japanese vehicles? What causes this sound?