I was thinking: From my understanding, it's best to charge your Tesla to 90% battery capacity in order for it to last longer. Since the 60D has the battery large enough for the 75 onboard, why would you need to charge the 60 to only 90%? Since I'm only able to use 85% of the onboard battery as it is, would it really make a difference on battery life if I charged my 60 to 100%? Also, I finally took the car for a long drive yesterday, going from San Jose to Walnut Creek. I left the house with 191 mile capacity, made a stop for coffee and then straight back and forth. Round trip is roughly 120 miles but when I returned home, I had roughly 20 miles left (not very impressive). It was a very cold day, weather was in the low 40's, heater was on as were seat warmers but I'm still surprised that in reality I had about 150 miles of charge our of the 191 I left with.