Amend Part 4 of Article 1 of Chapter 8 of Title 40.  Violation of this code section may be considered evidence of negligence or contributory negligence.  Changes the definition of �motor vehicle� to include pickup trucks, vans, and SUVs.  The failure of an occupant of a motor vehicle to wear a safety belt in any seat which has on may be considered evidence of negligence or causation; may be considered by the finder of fact on any question of liability of any person, corporation, or insurers; shall not be the basis for cancellation of coverage or increase in insurance rates; and may be used as evidence to diminish any recovery for damages arising out of the ownership, maintenance, occupancy, or operation of a motor vehicle.