I understand powder coating is the way to go especially with its durability. My Z will never be a show quality car (too much time and money for me) nor is it a daily driver. I had to pull the subframe for a chassis swap and decided to remove the rust and replace the all the bushings, subframe and differential. Once I put the subframe back on, I hope never have to do that again. Removing those subframe bushing SUCKED!