Abstract: A modular utility unit is provided which is intended to replace a door on a vehicle. The modular utility unit includes: a utility-containing and appliance-containing unit having a facade, a base, a top, sides and an exterior surrogate door panel; utility appliances disposed within the modular utility unit; and clamps disposed within the modular utility unit in proximity to the surrogate door panel. When the door of the vehicle is removed, the clamps cooperate with a door frame of the vehicle for securing the utility unit within the vehicle. Releasing the clamps enables removal of the utility unit from the vehicle, and the door of the vehicle may then be replaced.