Hyundai vehicles are manufactured in assembly plants across South Korea, the United States, China, the Czech Republic, and India. The main production hub remains in Ulsan, South Korea, which stands as the largest single automotive manufacturing complex in the world. In North America, Hyundai operates a massive car assembly plant in Montgomery, Alabama, that builds popular models like the Santa Fe and Tucson. You can check the country where any Hyundai was built by looking at the first digit of its vehicle identification number.