[Topspinmo]

Gas cart you can pretty much bet it was leaking gas, owner should been smelling gas for awhile for it to go up into bond fire 🔥. Probably carburetor cart with lack of preventive maintenance (none). Outside chance the battery could do exploded, but gas tank usually on other side which make it highly unlikely to rupture gas tank. Electric short could cause this but it would smolder for awhile before it turn into inferno.