Honda Manufacturing of Alabama (HMA) has marked the production start at its new US$71.4m automated facility which the automaker said was "a breakthrough" for its engine prHonda Manufacturing of Alabama (HMA) has marked the production start at its new US$71.4m facility which the automaker said was "a breakthrough" for its engine production in North America with the development of more highly automated assembly, including piston fitting.oduction in North America with the development of more highly automated assembly, including automated piston fitting.