You can definitely do it with a Tesla. Disable Auto, select the airflow direction and vents, select the fan speed you want (1-10), select the temp you want. Fan speed will not change with temp if manually selected.
I haven't tried it in a Tesla - will try it the next time I'm in one.
The key is to set the temperature to something much higher than the ambient. If you're already in a warm place, the experiment won't work. I've had multiple EV owners claim as you, and then demoed it to them on a cold day.
The key is to set the temperature to something much higher than the ambient. If you're already in a warm place, the experiment won't work. I've had multiple EV owners claim as you, and then demoed it to them on a cold day.