I still dont understand how that is safer. If the car is on fire, you can get out. I have been to many car fires when I volunteered with the FD and unless it's a wreck with entrapment, there's never any injury. In comparison, there are plenty of deaths from fires starting while people are sleeping.
Safer if you don't expect the person to get out when they see black smoke and flames coming from under their hood. Cars don't usually catch fire explosively.