It's too early to tell which lighter-weight materials will become dominant in carmaking as tough...
It's too early to tell which lighter-weight materials will become dominant in carmaking as tough new federal fuel-efficiency rules take hold, NYT reports. The Energy Department says reducing a car’s weight by only 10% can improve fuel economy 6%-8%; technologies showing promise in lightening vehicles are supported by $8M in awards the agency has doled out to the likes of GM, F and CAT.
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