Another idea - you have enough to handle with kids, car seats and strollers.
Did you consider shipping some of your suitcases to the resort? Consider creating a Fedex account online and shipping at least some of your luggage a week ahead of time. May not be as inexpensive as checking it on the plane (depending on which airline) but it will be less stuff to deal with at the airport and then you could probably all fit into a minivan. Most of the timeshares will sign for your luggage and hold it for you until you check in for no additional fee. To make it cost effective, don't use a luggage shipping company. Do it yourself. The absolute cheapest way is bring your account number with you to Fedex kinkos and ground ship from there. Fedex can pick up your suitcases at the hotel, but there is a surcharge. There is a Fedex kinkos near downtown Disney. Cost of shipping a 50# suitcase with someone dropping off at Fedex is similiar to what most airlines charge to heck the bag. Perhaps look into it.
I did this for my last trip and it was nice not having to worry about schleping suitcases and stressing over whether they will fit into rental car.
Did you consider shipping some of your suitcases to the resort? Consider creating a Fedex account online and shipping at least some of your luggage a week ahead of time. May not be as inexpensive as checking it on the plane (depending on which airline) but it will be less stuff to deal with at the airport and then you could probably all fit into a minivan. Most of the timeshares will sign for your luggage and hold it for you until you check in for no additional fee. To make it cost effective, don't use a luggage shipping company. Do it yourself. The absolute cheapest way is bring your account number with you to Fedex kinkos and ground ship from there. Fedex can pick up your suitcases at the hotel, but there is a surcharge. There is a Fedex kinkos near downtown Disney. Cost of shipping a 50# suitcase with someone dropping off at Fedex is similiar to what most airlines charge to heck the bag. Perhaps look into it.
I did this for my last trip and it was nice not having to worry about schleping suitcases and stressing over whether they will fit into rental car.