That's crazy, and if you try to stop and turn around the car it could maybe flash over, just have to keep going so the air flow keeps the car relatively cool, and hope you don't hit a patch of smoke that blocks your view of the road, or some falen trees etc. I'd be worried the tires blow too. Maybe it would be safer to attempt turning around after all but have to be quick.
Though I don't get why they would not have turned around before it got that bad. That fire actually looks rather tame compared to what it could be if there was more wind. Still scary as hell though, just think of how hot a camp fire can be and this is like a camp fire x1000.
Still eerie driving by where there was a fire near my city years back. All the trees are black, it's like driving through death. Though it probably looks cool in winter, I'd have to go by some time and take pictures.