[the manner in which the rear end has expanded out of proportion suggests that a massive outburst of energy took place in the rear section of the car. as there are no signs of incineration it cannot be a result of a bomb blast. the only outcome that can be derived from this is that the energy that caused this rapid expansion of the vehicle's body came from the rapid release of compressed gas when the cylinder burst. the energy pushed the metal beyond its elastic limit and it got torn to shreds!
well eleborated, totaly agreed and look at the ground underneeth the rear axle, asphalt is also telling the story.