Yup an almost $50K pain in the butt! My Cherokee TH has aluminum hood and tailgate, no waving that I can see??? White though seems like the best color? My JLUS Granite and got some waves, just a "JeepWave" I guess? My son in law has a JLUR $54K JLUR he got more waves for his money! lol But truly NOT funny!
Metal expands and contracts as temps change. The recent extreme temp (-25 to 40) changes here in the Chicago area made some doors a lot more noticeable. I noticed a few with really bad doors. The metal wave is know as metal oil canning. It's common on flat sheet metal. Very common on garage doors and metal roof trim. They actually texturize the metal on most garage doors to hide the oil canning. Rhinebeck01 is correct, lighter colors like white hide the reflections better so it's not as noticeable. Black will show it the most.