Ronald,
Broadened PIP provides family PIP coverage to someone who does not own an vehicle. Remember that PIP covers resident relatives. In the case of an insured driving a non-owned vehicle, the family would not be covered. Broadened PIP allows for this coverage.
Your PAP allows some coverage when you are driving other cars, i.e. a rental car. When an insured does not have a PAP because they do not own a vehicle, the Drive Other Car endorsement provides coverage for use of vehicles which the employee does not own.
I hope this helps.
Jan