About two months ago when I booked my Dollar Rental car at TPA pickup 12/24 dropoff 1/2 it didn't show minivan availability. I however did enter the southwest airlines code which priced out my full size rental to 400 bucks. Not bad. However, I really would like a minivan as most of our vacation will be shuttling family around and we need the space. What are the odds of getting one on the spot? How about an suV?