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For carmakers, fuel economy targets may be within reach

Mr Key with his aluminium-bodied Ford F-150 pickup in Raleigh last week. The new truck got him more than 23 mpg on a recent family vacation to Florida,.

New York

WHEN David Key drove his new mostly aluminium-body Ford F-150 pickup home this year, he knew he had made the right choice.

Mr Key, of Holly Springs, North Carolina, outside Raleigh, previously owned a 2007 version of the truck with a beast of an engine - a 5.4-litre V8 -