"The Motor Boys in Mexico" is a children's adventure novel written by H. Irving Hancock. It follows the journey of a group of young boys who are passionate about automobiles and embark on a thrilling trip to Mexico. The story highlights their experiences as they encounter various challenges and adventures while exploring the culture and landscapes of the country. Throughout their travels, the boys demonstrate teamwork, problem-solving skills, and a love for adventure. The narrative emphasizes themes of friendship and bravery, making it an engaging read for young audiences interested in cars and exploration.