Automakers report mixed sales results on 'clunkers' program

The federal government's "cash for clunkers" program may have boosted traffic in dealer showrooms last month, but the incentives produced mixed sales results for individual vehicle manufacturers.

Ford, Toyota and Hyundai reported higher sales in August, while General Motors, Chrysler and Nissan saw sales slip from year-ago levels.

General Motors Co., which emerged from bankruptcy in July, reported North American sales fell 20 percent last month to 245,550. Rival Ford Motor Co. (F), however, said total U.S. sales surged 17 percent to 176,323 vehicles.