If you are going over on a retirement visa which i did you are allowed one shipment duty and tax free.I took half a container of stuff over including tools books etc.
So think the driver set the bus on fire deliberately ? That would be extremely unlikely .Somehow a fuel line broke then sparks from the impact set the fire off .In truth i do not know ,,,,,and i am just speculating .I have seen in the past lots of crashes resulting in fires ...There is also the possibility that the driver fell asleep at the wheel .