I was wondering earlier today about a few things with electric cars... I assume that they use a different (electric vs heat from the combustion engine) method for heat. So do you get heat almost instantly? My daughter always wants the heat on as soon as she gets in a cold car and I have to explain it every time... Also, how much does using heat or AC affect your mileage? Again I am assuming again that the more you are using accessories, then the more you are taxing the batteries a d the less mileage you will get...