6-1-1: MOTOR VEHICLE DEFINED:
The term "motor vehicle" shall mean any vehicle which is self- propelled, including, but not limited to, tractors, forklift trucks, motorcycles, road building equipment, street cleaning equipment, and any other vehicle capable of moving under its own power, notwithstanding that the vehicle may be exempt from licensing under the motor vehicle laws of the state. (1996 Code § 1.04.300)