Riddle me this batman

ok here it is. 2004 WJ 4.0L 128k owned since 08 and 66.5 when i purchased. it burnt completely to the ground a week ago while doing a few doughnuts in a field... AND GO

Any idea if it was electrical or not? If not, I'm thinking maybe fluid leak of some kind and things got hot from the evasive maneuvers being performed, things ignited, and the rest is history.