“Motor vehicle” means, except as provided in subsection (b) of this section, a vehicle that: Is self–propelled or propelled by electric power obtained from overhead electrical wires; and Is not operated on rails. “Motor vehicle” includes a low speed vehicle. “Motor vehicle” does not include: A moped, as defined in § 11–134.1 of this subtitle; A motor scooter, as defined in § 11–134.5 of this subtitle; An electric bicycle, as defined in § 11–117.1 of this subtitle; An electric low speed scooter, as defined in § 11–117.2 of this subtitle; or A personal delivery device, as defined in § 21–104.5 of this article.