I'm a firefighter.

Avoid the front and rear of the car. The gas tanks, when ruptured, may flow an amount of gas that will make a dramatic fireball as it ignites, that may be confused by some to be an explosion. The shock absorbers and airbag systems will explode, throwing off the bumbers. Tires may explode with some force. An actual large-scale explosion is basically not going to happen excepting a few rare cases related to sudden pressurization and ignition of fumes in the tank - for example, rear-ending a vehicle that is already on fire can cause a sharp jump in tank pressure, coupled with a rupture, that can make quite a fire.

That's all I can tell you on the subject.

For the most part, there's no saving a fully involved vehicle. Stay back, let it burn, keep the surrounding area from going up.