Don’t drive into or near bushfires. If caught in a bushfire don’t drive through flames or thick smoke
Stop in an area of low vegetation. Leave motor running and airconditioner (recycle), hazard lights and headlights on.
Stay inside unless near safe shelter. Keep vents, windows and doors closed. Lie inside, below window level, under a woollen blanket for skin protection.
After the main fire-front passes, if car is on fire or heat and fumes inside are severe, get out and move to already burnt ground, keeping your whole body covered with the blanket.
The fuel tank is unlikely to explode in the period you need to stay in the car while being shielded from the deadly radiant heat of the main fire-front.