UNAUTHORIZED USE OF VEHICLE - DEFINITION
Vehicle - Every device in, upon, or by which person or property is or may be transported or drawn upon a highway, except devices moved by human power or used exclusively upon stationary rails or tracks. Unless a title or registration has been issued, vehicles moved solely by animal power, implements of husbandry, special mobilized machinery, or self-propelled wheel chairs or tricycles for invalids are also excluded.
Reference: 47 O.S. 1991, §§ 1-186, 4-101.