Every car coming off the assembly line would be so coated.
Actually, Talyho is right: Clearcoat IS the 'sealant' the manufacturers use to keep paint jobs looking new for years.
The best quality paint sealant I was ever involved with was sold by a dealer in So Cal. It sold as a two-application per year program for three years for $695 - about the cost of six regular details. It was a product that cost the dealer around $19 per application and took about 2 man hours @ $10/hr to apply. This adds up to a dealer cost of $234 over the three years.
The point is, even as good a quality a product as it was, testing by the manufacturer of the material showed that it was gone from the paint job before a year - hence the twice-a-year application. And, yes, cars traded in after the three years looked generally better than most, but would have looked just as good if they had been waxed 6 times.