DETROIT General Motors Corp. will shift its advertising for Buick, GMC, and Pontiac to promote their fuel-economy edge over competitors.
New commercials single out Toyota Motor Corp. models including the Tundra pickup and 4Runner sport utility vehicle as having lower efficiency than GM models.
The ad campaign is one of a number of steps GM is taking to arrest a sales drop 16 percent in the first half of the year as drivers turned away from pickups and SUVs for more fuel-efficient cars as gasoline topped $4 a gallon.
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