I'm renting a standard SUV from Tampa using the 'Drive out of Florida' promo. I need something with 6 seats and the Standard SUV is the only car available with the promo ($150/wk). I'm taking a 2 week trip and I need room for luggage. Is there any chance that they would give me a larger SUV or a minivan. Of all of the Standard SUV, which one has the most luggage room? Since I'm driving 1500 miles, which one gets the best milage?

Thanks for any help!