If the location you are reviewing has Emerald Aisle, you can join the Emerald Club. Then you can book a mid-size but take any car from the Emerald Aisle. It's still a crap shoot, but they often have some larger cars on there. With gas being high, they might actually have more right now. Just realize you MAY still get a mid-size car (and those are not that big). Most times I do get Impalas, Malibus, PT Cruiser, etc. In MCO the one trip they had 2 suburbans & a couple Chrysler wagon-type vehicles. You just never know.