BYD and other manufacturers are importing cars from China and scouting factory sites in Mexico as part of a global expansion that, for now, excludes the United States. Electric and Hybrid Vehicles, Protectionism (Trade), BYD Co Ltd, Mexico, Mexico City (Mexico) BYD and other manufacturers are importing cars from China and scouting factory sites in Mexico as part of a global expansion that, for now, excludes the United States. NYT > Business