Thatās just the monocoque, the rest of the car and the fuel tank were on the other side of the barrier, the wheel flew off in all directions as well.
If thatās just the monocoque then it is surrounded by carbon fibre body work which would have melted in the heat of the fireball, leaving something like that!!
The fuel tank contains some 100kg of fuel, if that was water it would be 100 litres, fuel is lighter than water (less dense) so I think there would be some 120+ litres of fuel.
I donāt think the fuel tank rupturedā¦