The two best-selling compact sedans in American history share a peculiar trait: most of their owners couldn't tell you what their warranty actually covers without Googling it first. They buy the car, ...

Charles O’Conner has reached the point where the joke is doing the work of a flare gun. “Looking for a buyer,” he wrote in a Duramax 3.0 owners group. “$50k. It must go.” That is a man trying to laugh ...