bus transportation is a common method of traveling between states in brazil - while in many places it can be less desirable, in brazil it is common for business people, families and individuals to use the bus to get from one city to another. taking a bus can be slightly more daunting than other means of transportation, but in reality the interstate buses are generally of decent quality with several comfort classes available for selection. the comfort classes of buses in brazil are convencional, executivo, semi-leito and leito.