Abstract: Disclosed is a mobility platform, system, method and, a detachable wheelchair and rickshaw drive assembly (Electric Mobility Attachment) including a chassis connected to a front and rear unit, each unit comprising a respective electrically motorized wheel. The chassis includes an interlocking element extending towards and interfacing-with a structural element on the frame of a wheelchair, such that forward force applied onto the chassis by the front and rear wheels, is conveyed to the wheelchair by the interlocking element, thereby propelling it forward.

Abstract: A vehicle and assembly locking and wrenching apparatus is provided by replacement nuts each having an incised front face and arcuate sides parallel to the face, surrounded by cylindrical, annular rings that prevent the gripping and turning of the nuts. Provision is also made for a coupling having a fitting that possesses projected walls complementary to the channels incised on the faces of the nuts, such that upon insertion of a fitting into a nut, engagement is provided for the attachment or removal of the nut by turning. A vehicle-and-assembly locked mode is created when removable assemblies are attached with the replacement fasteners, the coupling is attached to a U-shaped lock around the end opposite to the cylindrical locking mechanism for the U-shaped lock, and the U-shaped lock is locked around the vehicle and a stationary object.