The Spanish phrase "carros de segunda mano" refers to previously owned vehicles, primarily used cars or trucks. "Segunda mano" literally translates to "second hand" in English.
Used cars or trucks may be purchased from a car dealer or from a private party. Local web searches yield the best chance of success for finding dealers or individuals with used vehicles for sale within a given region. It is wise to review the state and federal laws protecting customers buying used vehicles before making such a purchase, especially if buying a vehicle in a country in which a person does not have formal citizenship.