On a separate note, one concern I do have is if there will be any issue with the EVSE in the extreme heat. The Roadster owner does have issues when the temps hit more than 100 degrees. Sometimes, the EVSE will "trip" and stop working. So, he has to cover the unit with a towel to "keep it shaded". I'm hoping this is one issue that has been "enhanced" since the Roadster.
Been there. Done that.
Tesla said that the Model S has liquid cooling for the PEM, Motor, and Battery. So, heat shouldn't be an issue. (or so they say)