She was obviously drunk, and/or stoned. She ran her car 30 feet into that house. Lucky somebody in that house wasn't killed.
Nevertheless, third degree burns are a horrible injury. She probably also has burn damage to the lungs. She is facing months of painful surgery, skin grafts etc.

Quote from an eyewitness:



said that he was initially convinced that the fire claimed Heche’s life as she was completely “burned up”:

“I was positive that the driver was dead. That she had burned up. It took at least 30 minutes for the fire department to douse the flames, extract the car and pull her out of the car.”