Has anyone ever rented two cars at the same time using their Emerald Club card? I have a group of family going to MCO this weekend and we need two cars. I have contacted both National Corporate and National in Orlando and got two different messages about this rental. Just wondering if anyone has done this. Also I want to make my Father in Law an additional driver on one of the cars! I just love to push the envelope with these companies! National Corporate doesn't know how it can be done and National at MCO says that there will be no problem as long as I am the primary renter on both cars. I will return to this thread after my rental and report my experience back to the group.