If I were you, with experience in dealing with Advanced AutParts, if you have one in your area, buy one can of each and go home and spray it on a test material and find the one that matches the closest to your car. Then take the others back with your receipt and say you didn't need em. That way u find the one u need without going back several times. Primer wise, I don't see why it would matter as long as it is duplicolor auto primer. Just make sure it's primer and not gray paint. :chuckles: