I'm sure. But what about all that electricity that's being used to preheat the car. My AM commute is fairly short. Seems like preheating for 30 minutes (that's longer than it takes to get to work) would significantly decrease the efficiency of my commute.
I doubt it will take 30 minutes to pre heat the car cabin to a comfortable temperature..... but nothing I or anyone else says will convince anyone who hasnt experienced this for themselves. You will find out when you get your car and try it.
/shrug