Abstract: A motor vehicle roof with a cover (3) which can be activated by means of cover mechanism (6) and which selectively closes an opening (2) in a fixed roof surface (1) or at least partially exposes the opening (2) by being raised at its rear edge, achieves increased safety against the cover being forced out to the top and enables the vehicle roof to be configured so as to eliminate height adjustment, by the cover (3) resting in the closed state with both its front edge (4) and its rear edge (5) underlying the fixed roof surface (1). Advantageously, a pretensioning force is exerted by the cover (3) on the fixed roof (1), so that one of these two parts impresses its outline on the other.

Abstract: The body of a recreational vehicle (RV) is configured to have a stowage compartment within the body's interior but separate from the interior occupant space. The stowage compartment contains a tank which serves water use fixtures in the interior occupant space. The stowage compartment is disposed adjacent the sidewall of the RV body and an opening is provided through the sidewall from the stowage space to the exterior. This opening is closed by a door. When the door is open, the tank can pass through the opening into and out of the stowage space. The tank can be either a fresh water tank containing a supply of fresh water for use at sanitary fixtures in the RV or alternatively it can be a waste water tank of either the gray water or black water type which collects waste from the water use fixtures.