Hi there, as Winter will be approaching for most of us in months ahead, I wanted to clarify some questions I had about the MX and its subzero package as well as standard items to deal with cold weather. Standard Items 1. Obviously front seats are heated for everyone, great 2. Rear defroster is there for all of us, great (hopefully works better than S since no wiper back there still) 3. Heated side mirrors are standard. Question 1: Doe these come on only when you use rear defroster, or automatically at a certain outside temp? I think it is only with defroster right? 4. Question 2: Is the wiper fluid reservoir heated at all, or nozzles by default? Related to below wiper question. Subzero Package 1. Add heated steering wheel, great. Loved this in Model S. Gets pretty hot. 2. Adds heated seats throughout. Question 3: Anyone feel the heated seats in X work better than the S? They were slow to get hot/warm thus didn't serve the purpose of having the seat warm quick on cold days which is most needed. (wished the app allowed control of SZ package). 3. Heated wiper blades. Main question 4: Are the actual blades heated now, or is it still just that grid on windshield at bottom that is a defroster also? That didn't work too well on the S it seemed. Also would this include wiper nozzles? Thanks! Very little info out there on actual SZ package for X.