General Motors Co (GM.N) reported record quarterly earnings for the third quarter, as strong demand for trucks in North America and improved profit margins in China overcame declining revenues. GM shares rose 5.3 percent to $35.26 a share and have risen more than $5 since the start of the month. GM posted profit of $1.50 a share in the quarter, well ahead of the $1.18 per share consensus among Wall Street analysts polled by Thomson Reuters I/B/E/S.