A friend of mine was burned alive last week in his car.

He crashed into another car,he didn't even drive that fast,the other driver wasnt even hurt.His car started catching fire and in a matter of seconds,bystanders saw him trying to break the rear window by kicking it but alas...
Multiple witnesses were in schock when they they pulled his burned corpse out of the car.

A:For some reason he didn't open his door,does anyone know why?(the handle too hot or something?/in schock from the accident?/temporarily unconcious?/...)

B:If I were him,what could I've done to escape that burning car?

C:What could an unequipped civilian have done to save him?

Sorry for these questions,but I really need to know,otherwise it feels like he's died in vein.