The next image is of the Midget Autopia. I am assuming Rex is driving one of the cars.
The third image is of Rex standing next to Gideon the Cat from Pinocchio. The character design is actually very cute.
The next image is of Rex who is now 10. He is standing in front of the Fantasyland Autopia with the Mark V or Mark VI Autopia cars in the background.
And I believe this is Grandmom standing at the entrance. In the background is the new Pirates of the Caribbean attraction poster.