Yes, the fuel is the pesky little problem. The NTSB has very detailed charts on fatalities and injuries for most crashes. In the cases of low speed crashes it is eye opening to see how people died. People in the front often die from blunt force trauma, people in the back from smoke inhalation. People above the wings though often die from "thermal injuries", which is a polite way of saying "burned to death". I'm sorry, but that would be my last choice for death on any given day.