I just picked up a new 2008 Elise CA edition two weeks ago and last weekend when I took the car out for a run, I heard high pitched noise coming from the front brakes. Two days ago, I took it out for a run again, I heard high pitched noise from front brakes and low pitched noise from rear brakes. I noticed that the noises came after the car has been sitting in traffic for 10-15 min (moving at low speed). Is this normal? If not, what could be wrong?