A predetermined number of erasable blocks positioned at a start of a volume area in a semiconductor memory card are provided so as to include volume management information. A plurality of computer instructions is stored on a computer readable medium and executed by a processor to perform the steps of connecting the auxiliary vehicle to the prime mover with an electronic stability enhancing system and an auxiliary stability enhancing system, including the processor and memory. Similar mobile IPv6 techniques also may provide an evolution path toward internetworking using native mobile IPv6. The shaft is connected to a motor for powered rotation of the shaft.