WordNet sense 1 (the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant):

gondola

WordNet sense 2 (where passengers ride up and down):

elevator car

WordNet sense 3 (a wheeled vehicle adapted to the rails of railroad):

railcar, railroad car, railway car

WordNet sense 4 (a motor vehicle with four wheels; usually propelled by an internal combustion engine):

auto, automobile, machine, motorcar

WordNet sense 5 (a conveyance for passengers or freight on a cable railway):

cable car