通用汽车（GM）美股盘后冲高回落，目前转而跌0.39%美国总统特朗普宣称：“我不希望预测本周末的加拿大大选（结果）。我真不希望加拿大车辆进入美国市场，可能会在某个时间节点上调对加拿大的汽车关税。正设法与加拿大达成一份协议。希望就在美国造车。”

Core Viewpoint - General Motors (GM) stock experienced a post-market surge followed by a decline of 0.39% amid ongoing trade discussions and political statements regarding Canadian automotive imports [1]. Group 1: Trade Relations - President Trump expressed reluctance to predict the outcome of the upcoming Canadian elections, indicating uncertainty in trade relations [2]. - There is a possibility of increasing tariffs on Canadian vehicles entering the U.S. market at some point in the future [2]. - The U.S. administration is actively seeking to reach an agreement with Canada regarding automotive trade [3]. Group 2: Domestic Manufacturing - There is a strong emphasis on manufacturing vehicles within the U.S. as a preferred strategy [4].