'No One Was Driving the Car': 2 Dead After Fiery Tesla Crash There was a person in the passenger seat of the front of the car and in the rear passenger seat of the car. Harris County Precinct 4 Constable Mark Herman said authorities believe no one else was in the car and that it burst into flames immediately. He said it he believes it wasn't being driven by a human. Harris County Constable Precinct 4 deputies said the vehicle was traveling at a high speed when it failed to negotiate a cul-de-sac turn, ran off the road and hit the tree. KPRC 2 reporter Deven Clarke spoke to one man's brother-in-law who said he was taking the car out for a spin with his best friend, so there were just two in the vehicle. The owner, he said, backed out of the driveway, and then may have hopped in the back seat only to crash a few hundred yards down the road... Authorities said they used 32,000 gallons of water to extinguish the flames because the vehicle's batteries kept reigniting. At one point, Herman said, deputies had to call Tesla to ask them how to put out the fire in the battery.