General Motors beats earnings expectations, investor fears linger

By Bernie Woodall and Joseph White DETROIT (Reuters) - General Motors Co shares fell over 3 percent on Tuesday despite better-than-expected third-quarter results amid fears that a slowdown in U.S. vehicle sales and currency turmoil in Europe will undercut future profits. GM Chief Financial Officer Chuck Stevens told reporters that the overall U.S. car and light truck market is a "plateaued environment," with sales flat for the year. The largest U.S. automaker said it expected full-year results w