The term 'AIRPORT CAR' can be broken down into two crossword solutions: CAB (3 letters) and RENTAL (6 letters). A CAB is a type of car that is typically used as a taxi, providing transportation services to passengers for a fee. Rentals are cars that are rented out for a period of time, usually for a fee. Airport car services provide both cabs and RENTAL cars for travelers who need transportation from the airport to their destination.