
A Hover Car was a transportation vehicle used to carry people or items fro one location to another. During the Second Robotech War the Army of the Southern Cross often used them as a fashion of transport faster than walking or for situations where more than 2 people were needed a ride (Masters Saga: "Outsiders")
The Tirolians were also in possession of Hover Car's of their own which was used for transport through their massive ships (Masters Saga: "Dana In Wonderland")