Can anyone assist me with a way to desk top plan a trip while allowing for an older car and battery with only 215 typical range on a 2016 S 75. I have read continuously for a week and finally pulled the trigger on a cream puff condition 2016 S with Free SC and Prem. Connectivity. I realize that sitting in the car would likely be best for planning but wondering about doing the same on a decktop or app. instead. Still trying to figure our which apps are the best w/o having too many also.