I am picking up my new to me 2017 S 75D on monday, and immediately embarking on a 3 day cross country home. Having never dealt with charging, I have done a lot of research and route planning. I am getting a good idea of where I intend to go and where I intend to stay. My biggest concern is the stretch from Truth or Consequences, NM to Albuquerque, NM. There is a lot of elevation changes, a forecast quartering headwind and a pretty long distance to cover. I have read that preheating the car can save a lot of battery, and we are planning on staying at the holiday inn express with a super charger in the parking lot. Should I leave the car at 10% overnight and plug it in first thing in the AM to charge and warm up, or charge it to 90% in the evening, then plug it back in in the AM to top it off and warm it up? I just dont want to leave it plugged in all night, as I understand that is bad manners at a supercharger. Any advice is appreciated!