The privately owned railroads in the USA recognized much sooner than their state-owned European counterparts the immense amount of advertising rolling day and night through the states in the form of their freight cars. Hence, the colorful variety of company colors for individual railroads. For the most part the cars can be used freely from cost to coast, as in Europe. Otherwise, frequent freight transfers would make transport times so long that the railroads would not have a chance against trucks. An exception to this were cabooses; they made up a colorful end to the often mile-long trains in the symbols (also borne by the locomotive) of their respective companies.