The provisions of this part shall not apply to:
(a) Racing vehicles.
(b) Motorcycles, except as otherwise provided in Section 43107.
This section shall become operative on January 1, 1989.
(Amended (as amended by Stats. 1982, Ch. 467, Sec. 2) by Stats. 1984, Ch. 233, Sec. 2. Section operative January 1, 1989, by its own provisions.)