The new mandates will take effect in 2016, which replaces car manufacturers such as Ford (FN) and General Motors (GM.N), only one design cycle to significant changes, the expensive steel, needed including aluminum, steel, new alloys and magnesium. Car manufacturers are facing higher costs to the consumer to associate the mass come with power pass. "There is much hand-wringing in the industry right now," Dick Schultz, said consultant at Ducker Worldwide and expert in the use of metals in cars . "You can not afford on the wrong side of this thing." Car manufacturers need to achieve an average fleet consumption economy of 35.5 miles per gallon in 2016. Light Trucks - half of all U.S. auto sales in the first 11 months of 2010 were - is to get about 30 miles per gallon. The Corporate Average Fuel Economy (CAFE) for 2010 is 29.2 miles per gallon. For light commercial vehicles but it is 24.9 miles per gallon, according to the Government. The updated standards at ...