Hyundai Motor and Kia Motors are trying to overcome the current downturn by aggressively opening overseas assembly plants one after another. The car makers will start building a second American plant for Hyundai Motor within this year while holding a groundbreaking ceremony for a fifth Chinese plant on June 23 in Chongqing. Kia Motors is busy constructing a plant in Mexico while Hyundai Motor is reviewing a plan to build a second plant in India.