newish paint-waxes, sealers? what

Ask yourself this.... If there is a hi tech application that will chemically bond to paint and offer Nanotech scratchproof color enhancing results .
Why aren't the factories doing this before shipping the car ?
I have yet to see any Technical proof that they do what they claim.
I bet you cannot paint over this stuff, like Nu-finish. Maybe thats why manufacturers dont apply at factory but I think some high end car dealers will do it for you post purchase, contractor guys in the same tent as the headlight refinishers.