Don't hold me to this, but I don't think you can rent a car at the pier. I tried to study, and study this! The best you can do is one of the downtown car rentals will pick you up and take you to their office downtown. We booked Thrifty for when we return to Miami, and are dropping the car off at Ft. Lauderdal airport that afternoon. It ends up cheaper than taking a cab, gives us a place to put our luggage, and give us some freedom. Our flight leaves at 4, so even though we will only have the car a few hours it is worth is IMHO. The trick is knowing when we are getting off the ship. I am going to call Thrifty to have a pick up around 10. Then, it's off to south beach for a while and then to FLL. By the way, we are flying into West Palm Beach, renting a car from Budget, returning to the Sheraton Biscayne downtown Miami with a free shuttle to the pier. We are flying in a few days earlier.