I'm generally happy with paint on new cars upon delivery. In fact I find myself tapering off on car after after the first couple years of ownership (once it has it's door dings and rock chips, and scratches because they make me sad every time I detail). Do I still need to clay bar and polish the car before ceramic coating it myself (I have never done this but I was thinking to drive the car home and immediately do this to it). I know... Paint correction is best, but if I don't care can I just wash then apply the ceramic coating? I'm more after protecting the paint than perfection.