This is one secret a couple of us have conceptually known about for four months, but only today, after it was outed by Road and Track, and with their excellent further sleuthing, did we learn of more more about this GM patent to emit heat from the motor/rear hatch area. As noted in the link, this feature in real life looks amazingly cool.
Mod Edit: Merged with our Home Page story
Mod Edit: Merged with our Home Page story