South Korea, Aug. 6 -- Hyundai Motor Company and General Motors announced plans for their first five co-developed vehicles, marking a significant milestone in their previously announced strategic collaboration.The two companies will co-develop four vehicles for the Central and South American market, including a compact SUV, car and pick-up, as well as a mid-size pick-up, all with the flexibility to use either internal combustion or hybrid propulsion systems. Hyundai and GM also will co-develop an electric commercial van for North America.Hyundai and GM expect sales of the co-developed vehicles to be more than 800,000 vehicles a year once production is fully scaled.GM will lead the development of the mid-size truck platform, while Hyundai wi...