I have a few dents on the inside driver's door.

Has anyone tried one of the paintless dent removal companies on your Mustang? I was told the metal is too thick for these guys to be effective.

 

they will get the dent out for the most part or at least make it not as noticable(sometimes it leaves a few rises in the metal from them using the rods) some of them use dry ice also the cold make the metal contract etc

 

I have seen a few people use them when they bring them to the shop, too many times I end up painting it. On non OEM or older paint often the glue will pull paint clean off with it. If you dont wanna paint and there is no hard crease from the damage look for a pro paintless dent remover. If you cant find one in the book go to an auto auction, they tend to do a lot of work there.