Ah - leather on door issue is same one I have. Just this past summer it showed up exactly where my elbow sits and then the side of my hand. Never seen this in a car ever - I do think it's an issue of the car gets hot and then I wonder if maybe something on my arm like suntan lotion caused the leather to "melt".
On fixing - so it sounds like I need to get an entire interior panel replacement -- the area with wear is not a small seperate piece of the interior door trim?
On fixing - so it sounds like I need to get an entire interior panel replacement -- the area with wear is not a small seperate piece of the interior door trim?