1. Will using the heater help delay the powertrain from overheating and limiting power? Using ICE logic here: taking the heat from the engine and dumping it into the cabin... not sure if this applies to the Tesla. (Assuming 60-70deg temps) 2. I understand the high energy use on track (1000+ Wh/mi) produces an artificially low 'rated range' (31 miles left problem)... but is there a way to determine how many easy freeway miles are still left on the battery. I need to leave the track with at least 20 miles left to get to the closest charger. Can I use "Total Energy Since Last Charge" somehow? 3. TC on or off? I have a lot of track experience, but this is my first time tracking the Tesla and first time at this track.