General Motors has already left most competitors in the dust this year, but here's why its stock price could go even higher.General Motors (GM 0.39%) doesn't get enough credit, in my opinion, for its massive turnaround since the financial crisis and Great Recession. Way back when, Ford Motor Company (F -0.68%) received great fanfare (and justifiably so) for getting through the recession on its own dime. It then quickly shifted gears to produce new and desirable products, improve communication and operations ...