A storage system is provided for the rear storage compartment of a vehicle. The storage system may include a collapsible cart that is received in tracks in a load floor. Other types of objects may be stored on the load floor or in compartments below the load floor. Compartments may be provided below the load floor on a tray having multiple compartments that is rotatable within a well formed under the load floor. A frame for storing removable trays, bins or the collapsible cart may be used to store objects above the load floor.