A liquid wax usually contains more volatile solvents that evaporate out when the wax is applied. The polymer-based waxes tend to last longer, yet do not seem to give the same depth of shine, as do the Carnauba waxes. As a general rule, depth of shine and longevity are opposite ends of the same scale. Polymer waxes are also usually less sensitive to excess car wash. If you are using a polymer based wax on a German paint and have hazing or clouding of the wax, about the only thing that will work is to strip the polymer wax and rewax with a Carnauba based wax.
German paints hate polymer-based waxes.
I have gotten a lot of mumbling and shuffling of feet, but no hard and fast answers. The American and Japanese paints can tolerate polymer waxes. The German paints just don't seem to react well with most of these products. There are also highly advertised Teflon based products on the market. It is my understanding that it requires a 600 plus degree environment to bond Teflon to your paint.