General Motors anticipates a smaller impact from tariffs and is boosting its full-year adjusted earnings forecast as its third-quarter performance topped Wall Street’s expectations. Shares surged more than 9% before the market open on Tuesday. The automaker reduced its expectations for the full-year gross impact from tariffs to a range of $3.5 billion to $4.5 billion. Its previous guidance was $4 billion to $5 billion. GM anticipates its tariff mitigation actions will offset about 35% of the