Originally Posted by baddog

From CVC Section 400. (a) A "motorcycle" is any motor vehicle having a seat or saddle for the use of the rider, designed to travel on not more than three wheels in contact with the ground, and weighing less than 1,500 pounds.
(b) A motor vehicle that has four wheels in contact with the ground, two of which are a functional part of a sidecar, is a motorcycle if the vehicle otherwise comes within the definition of subdivision (a).

So, while his press secretary may think there is a difference, I think the law agrees with me.