Dunno mate - I had the same thought. The car itself looks in pretty good nick (excuse the pun) so I'm guessing a prank played on someone by friends with access to such hoisting equipment.Get’s you wondering….. was the car attached to the barrel then dumped? Would need a truck with hoist.
Were the two taken separately & the car balanced precariously on top? More likely - whatever, a hoist & pickup truck needed to carry the barrel.