I have been wondering the same since I just purchased a new truck and seem to have H2O GG, Glass Sealant, Buttery Wax ect... Would using the new Ceramic Spray after I Clay and Finish Buffing with the Finishing Polish be the way to go? Also after the Ceramic Spray is using Buttery Wax still OK on top of it? I have a few bottles of the H2O GG but if the Ceramic is the way to go I will go that route. It is making things a little confusing.