Automaker is a term commonly used to refer to companies that manufacture automobiles. However, there are different synonyms for the word that can be used interchangeably. For instance, the word "car manufacturer" refers to automakers who exclusively produce cars, while "vehicle manufacturer" is more comprehensive, as it includes companies producing motorcycles, trucks, and buses. "Auto producer" and "automotive company" are also synonyms for auto manufacturing companies. In addition, "car builder" and "motorcar manufacturer" could also be used to refer to automakers. These varied synonyms can be used to avoid repeating the same word in a text or to add some variety to the writing.