I am looking at renting from Thrifty. What car class should I reserve online to make sure we can all fit in the car? The two younger kids can share the middle seatbelt in the backseat and we will probably have 3 large suitcases. Mid size? What type of cars do they have? I checked into Isis, but our kids are 13, 11, 8, 5 and so I would like to go from the airport to car as quickly and easily as possible-which is why I chose Thrifty. I'm not sure I would be up for getting us all to a taxi and then to Isis after leaving Minneapolis at 6:20 am with 4 kids :-) Any help or advice is much appreciated!