Ive started the prep process on my 83 Cadi and have a few questions. When I started knocking down the old paint with 320 on the DA I can tell that the car has been painted 3 times. The original color is silver, then its was painted blue, and then the last paint job is a single stage heavy metallic blue. My intentions are to do a color change and paint it a slate med/dark gray. My question is whats the best type of primer to spray on top of all this old paint? Or should I take this thing all the way down to the metal? I really dont want to strip this thing all the way down to metal if I dont have to. This is a backyard boogie job so I dont want to get in over my head. The body is straight with no major dents. The paint thats on it now was ok but had some deep ass chips. I cant floss with chipped up man ya-da-da-I mean.