Like floodwaters pooling in a reservoir, unsold General Motors vehicles are getting close to breaching the dam. Not since November 2007 has the automaker held so many vehicles in reserve, though GM claims there's nothing odd about the buildup. With several updated models either imminent or on...

Not since the dark days of the recession has General Motors had so many vehicles clogging its inventory. Bursting at the seams with unsold cars (but not trucks or SUVs), the automaker will temporarily turn out the lights at one assembly plant and kill off a third shift at two others in order to...