The Mercedes-Benz R107 and C107 are the second longest single series ever produced after a class of vehicle manufactured by who? 
Mercedes-Benz R107 and C107: The Mercedes-Benz R107 and C107 are automobiles which were produced by Mercedes-Benz from 1971 through 1989, being the second longest single series ever produced by the automaker, after the G-Class.
i don't know