Ok, I gave it a shot on my girlfriends '94 Honda Del Sol. I tried little dents, "butt-cheek" size ones, etc... It wouldn't work on any of them. I had been wanting to try the dry ice trick for a while now, but after this unsuccessful attempt w/ the CO2, I have very little confidence in it working. Mind you, these were not creased in dents, just "pops" (hard to describe) that should be easy to remove.