Client just bought a brand new Chevrolet Silverado 2500HD and wanted to protect it, very well.
So, this truck got Ceramic coated X 5!
The paint was polished to enhance the gloss and depth and prime it for the ceramic coating. It got 2 coats of CarPro CQuartz UK 3.0 to protect it for around 2 years against many contaminants. The coating was then top coated with SiO2 sealant to further enhance gloss and increase hydrophobicity (water beading).
Trim was also coated and keeps it deep black for around a year. We then applied a glass coating; water just beads and rolls off over about 35 mph and lasts up to 2 years. Wheels were coated, too, which lessens brake dust from adhering and cleans off easier, and lasts about a year.
Coatings last longer, protect against many more contaminants better, and help make maintenance easier.