Generally, staying with your vehicle is the clear winner, statistically, from a survival perspective.
But I have to say that this is the emergency brain surgeon I want on my side, who didn't hesitate to walk six miles:
“He [the patient] had a 90 percent chance of death,” Hrynkiw said. “If he didn’t have surgery, he’d be dead. It’s not going to happen on my shift,” he added."
Big round of applause.