Be careful where you try the NXT Tech Protect stuff....
I tried some for the "dimpled" effect bits of the door as had some little scuffs where caught it and they looks a little dirty. Also rain had made them go all patchy.
Problem is that you end up doing it all or it stands out too much. When you first put (just a little) on it goes darker and with a little wet look. Don't worry too much, it will dry out to a darker look, but not too much wet look, although it has a little shine to it.
I used it on all the interior doors, dash, plastics and rubbers. It protects them all and brings them up nicely. Just make sure you are consistent with it.........