this might sound crazy, but try some of that GS-27 scratch remover stuff. you can find it at pepboys or autozone. one day it was really windy and a tree fell right in front of me and it took off my side view mirror and scratched up my entire side of my accord. i used some GS-27 and it took it ALL out. i was amazed. it LOOKS like you just have white paint marks from the other guys car on your hood, and the gs-27 might be able to take it out. i would def. give it a shot, its only like 8 bucks.