I had a standard rental car at MCO thru Alamo for $350 for the week, booked way in advance. I really wanted a minivan, but every time I checked prices were over $1000, so I was just going to go for the standard and have some in our party do some ubers (all over 21, but a party of six). And what do you know, when I went to pick out my car, they said pick anything in this row. There was a minivan there. I said can I get the minivan without any extra charge and they said yes. The rental is complete too without any extra charges. I had to be in a position where I would have been fine without the minivan not to have one reserved, but wow -- I was a happy camper on my March spring break rental at getting a minivan for the price I paid.