Really hard to see well. Looks like a '65 Coronet on the black one. Looks like '64 Plymouth B-body (Savoy/Belvy/Fury) on the blue one, actually maybe SportFury only given the trim holes
You put anything too harsh on it, and it's gonna look good for a very short time. Then the cracks start, then the rust. :wideyed:
I would probably leave it go, or just use a conditioner for vinyl and forget the spots.