Do commercial vehicles pick up at the airport to make money?

Most of the airport shuttle buses are Buick GL8 commercial vehicles, which gives me the impression that they are still profitable. Business. Used of cars. It integrates the functions of car, station wagon and van. Every seat in the car can be adjusted and there are many combinations. For example, the backrest of the middle seat can be turned down to become a table, and the front seat can rotate 180 degrees.