A modular system for an automotive vehicle configured to permit removal of a removable structural module from and reattachment to an automotive vehicle is described. The system includes a removable structural module comprising a body, a support structure configured to receive and support the removable structural module and to permit the removable structural module to be releasably attached to an automotive vehicle, a sensing arrangement configured to permit confirmation of secure attachment of the removable structural module to the automotive vehicle and configured to permit identification of a predetermined type of the removable structural module, and a computer configured to identify the predetermined type of the removable structural module from among multiple possible predetermined types of removable structural modules. The removable structural module comprises multiple connecting structures that permit the removable structural module to be releasably secured to the automotive vehicle.