All, I bought a Model s 100D. Looking at the Trip, I started doing some math, and I'm wondering if anyone else has similar calculations, or explanation. I charge my battery to 80% every night. Upon entering the car, it is immediately at 79%. I'm attributing that to the fact it charges at 80.00%, and after getting in the car, it goes to 79.99%. After my drive to work and back, I checked the trip. It said my use since last charge was 13.5 kwh. I would expect this to be 13.5% (100 kwh battery). However, my % left was 63%, meaning it used 17% (which would be 17kwh for a 100 kwh battery). could the radio/hvac really use 3.5% after only 38.6 miles? Doing the math with just miles, 13.5/17= .79 kwh/%. multiple that by 100, and the math would make the battery 80 kwh. Thoughts? Ways to Check? I called support, and they said someone would have to call me back... 2 days ago. All the while my car is still out of alignment, I still have a mystery rattle, my windshield is scratched, and my GPS sporadically freezes me in a random spot.