The compartment comprises a spare tire house (5) that holds the spare tire (6) for the vehicle and is provided under a luggage compartment by depressing a floor panel (4). A spare tire cover is used to cover the opening of the spare tire house. A floor forming member has a step provided at the periphery of the opening of the tire house. A tray may be disposed under the cover and the periphery of the tray is placed and fixed on the step (10) of the floor forming member (11). The hole is formed in the centre of the tray and has a removable container for holding articles.
