Random question, but what makes the A/C unit in a Tesla so good? I was driving my wife's Range Rover, which also has remote start, and to get the A/C to work it has to turn on the car. Why is it that ICE cars can't run A/C cool off the battery? If the Tesla can do it, I'm lost as to why ICE cars can't. I'm not talking about forever, just for a few minutes or so. But in an ICE car, it just blows complete warm air if it's running on battery.