You can use a smaller car for city trips, an estate for removals, or a people mover for outings with the family.
In fact there are two terminals under construction, the main building plus satellite B connected by an underground people mover.
The other two are the 107 city car and the 1007 compact people mover.
However, if Donald were prepared to consider an older and larger people mover there are lot more options.
The Domestic Terminals can be reached by a quick ride on AirTrain, the airport's people mover.