i got rear ended last night at like 5 MPH. He bent my exhaust pipe and cracked my fiberglass bumper. I know i can buff out the white marks that he left on my bumper, but im worried about everything else. the exhaust pipe is pinched, and is rubbing against the tire. i pulled it off the tire, but im still worried about it being pinched. can i still drive it while the exhaust is pinched without messing up my engine? how do you repair fiberglass? im so mad, i just got the car running and this happens. please tell me some good news. thanks guys.