When assembly of the C-Max Hybrid crossover begins at the Michigan Assembly Plant outside Detroit next year, Ford expects that the cost of the vehicle’s hybrid system will be 30 percent lower than that of the previous-generation hybrid system, introduced on the 2010 Ford Fusion Hybrid. Ford’s goal is to cut the cost of the next-generation Ford hybrid system another 30 percent but hasn’t said when the next-generation hybrid system will be launched.