Yes, the car you drive into the park does not need to be registered to you. You may rent or borrow a car to drive into the park and still use your pass to enter at the PER VEHICLE rate. Pass owners driving vehicles rented through Uhaul, Enterprise, Hurtz or any other rental company can enter the park at the PER VEHICLE rate.
License plates are not linked or added to a card.
For sites/parks that charge PER VEHICLE - up to 15 people can enter the park if they are all riding in a non-commercial vehicle and the pass holder is in the vehicle.
Non-Commercial Vehicle: Passenger car, van, pick-up truck, converted school bus, recreational vehicle, vehicles with trailers, etc., used to enter a Federal recreation site for non-commercial purposes.
To better understand the benefits of a PER VEHICLE rate please read the following: