Don't overthink it. Just put in a car rental quote request from AutoSlash. Zillions of posts here (and my long experience with them) that have proved their worth. You'll be redirected to Priceline to view the discounted quotes and for booking. Just don't forget to go back to the AutoSlash site to have them track your Priceline rental in case of price drops (for which you'll be notified by AutoSlash).
Makes no sense to make a direct Priceline car rental booking.
My op.