Well I know the brakes work well, today on my way home from Panama City beach, FL on Hwy 167 I was going the speed limit of 65 MPH. This person on a motorbike pulled right out in front of me anticipating he was going to gun it but he stalled out, I am new far from him so I slam the brakes completely and preform a major swerve and the car starts grinding and beeping. Now is that grinding noise normal or is that the brakes getting eaten away? I have to preform an emergency slam probaly 1-2 times a week, mostly for only a few seconds and below 45 MPH as Birmingham traffic is horrible and people are bad drivers. How long will my brakes last typically with this kind of stopping?