I had a White 70GT with a 351C and a Black Fiberglass Hood.
Once I lost the hood on the parkway at a pretty high rate of speed, SOB flew up and ripped itself off of the hinges. Flew up and over the car and didnt touch it, then it landed good side up in the right lane all the way behind me.
I pull off to the side and run all the way back and I cant believe it but everyone is going around it and the top side was "perfect". I was like OMG thats great all I have to do is the underside repair and then BAM this MF drove right over it right in front of me
Good Luck