Definition of a "New Vehicle" 

You'd think it would be obvious what a new vehicle is, but everything is defined very precisely, because the car manufacturer is going to try to use every little loophole to break your case.  They only have to prove that one thing doesn't apply to your case in order for them to win.  The law is designed to make sure that doesn't happen, but here's the exact wording:

"New motor vehicle" means a new motor vehicle which is used or bought for use primarily for personal, family, or household purposes. "New motor vehicle" includes the chassis, chassis cab, and that portion of a motor home devoted to its propulsion, but does not include any portion designed, used, or maintained primarily for human habitation, a dealer-owned vehicle and a "demonstrator" or other motor vehicle sold with a manufacturer's new car warranty but does not include a motorcycle or a motor vehicle which is not registered under the Vehicle Code because it is to be operated or used exclusively off the highways. A "demonstrator" is a vehicle assigned by a dealer for the purpose of demonstrating qualities and characteristics common to vehicles of the same or similar model and type.