Several posts in this thread reference the requirement to have a mid-size vehicle reserved to take advantage of the Ultimate Choice President's Circle benefit. I don't see that a mid-size vehicle class exists. There is Intermediate, Standard and Full-Size but no mid-size and that's even in the sticky in the Hertz forum. So I have an Intermediate reserved, does that count as mid-sized? I'm flying into FLL and while on business trips I really don't care about the car I get (which is good since Hertz cars have degraded for me over the past several years), but this is a long personal trip with drives between the Keys and I'd like the nicest car I can get. Should I change my reservation to full-size now?