Abstract: A vehicle comprises a body having a deck and a wall, said wall comprising two parts connected for relative pivotal movement about a horizontal axis. There may be first, releasable, pivot means having an axis above the deck, and second, releasable, pivot means adjacent a lower edge of one of the wall parts for allowing the wall to pivot with respect to the deck, so that on release of the first pivot means the wall may pivot about the second pivot means and on release of the second pivot means the wall may pivot about the first pivot means. There may be third, releasable, pivot means having an axis spaced further from the deck than the axis of the first pivot means so that on release of the first and second pivot means the wall may pivot about the third pivot means.