Well If I go from past experiemces with other Fords with plastic (I used to work at a Ford bodyshop as a painter/body man). Most of that stuff would be covered under warranty and in that case you bring it back and Ford changes it out for nothing.
if you mean the textured plastics, I wouldn't worry about it too much. going by the looks of the same exterior plastics on my now 5 year old F-150 it should be just fine. I just about never clean it and those parts are still looking good. not faded, worn, nothing.
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