A storage apparatus for use on the rear wall of a Multi-purpose sport vehicle. This apparatus includes a tire carrier having an L-shaped member with a vertical leg hinged in a pipe support mounted on the rear wall and with a horizontal leg supporting a pivot unit fixed to a vertical support plate having stubs supporting a tire wheel. The apparatus also includes a rack assembly having an outer tubular rack with a central space and being hinged to the rear and having an inner tubular rack hinged to an outer side tube of the outer rack and fitting into a vertical space when folded between the rear wall and the tire carrier.