The difference between 5* and President is that the PC you get a gauranteed upgrade to at least a Premium car as long as you book at least a midsize, the 5* I believe is not gauranteed. Only time I could see that they may have needed to give you just a fullsize is if maybe they were already all pre-reserved and didnt want to give someone elses car away that had actually paid for it. Also to know the exact difference's you can always call up Hertz and have them read to you what the difference is. It is in there computer on what both are intitled to. If for some reason they seem to not be able to answer just ask to speak with one of the CSS and they will be able to tell you.
[This message has been edited by pokes (edited Dec 25, 2003).]