“Motor vehicle” is defined as every vehicle which is self-propelled and every vehicle which is propelled by electric power obtained from overhead trolley wires, but not operated upon rails;

“Vehicle” is defined as every device in, upon, or by which any person or property is or may be transported or drawn upon a highway, excepting devices moved by human power or used exclusively upon stationary rails or tracks. (Ord. 97 §2, amended, 1983)