Investors may be taking a fresh look at General Motors (GM) and Ford Motor's (F) stock after their stronger- than-expected Q1 earnings and upgraded guidance. This was despite Q1 sales of $43.62 billion slightly missing expectations of $43.93 billion and dipping from $44.02 billion a year ago. Still, GM reported that its adjusted EBIT increased 22% YoY to $4.25 billion, reflecting improved margins and operational discipline. GM topped Wall Street's EPS expectations yesterday evening, and Ford followed suit w ...