I was on vacation for a week and this morning when I entered my MS for the first time, I noticed all of the hard black plastic interior trim pieces (primarily lower door panels and back of seats) were covered with a mottled shiny residue. I haven't had an opportunity to formally try to clean it, but it looks like it's easily "buffed out" with a cloth. The car was inside of a garage for the week (and I'm guessing the average temperature in there was around 25ºF. (I confirmed that there wasn't any containers of liquid inside the car that might have exploded...). Anyway, just curious if anyone else has run into this?