In the past two decades, investors in Ford (F 0.27%) have seen their starting capital rise by just 55% (as of Nov. 25). For comparison's sake, the S&P 500, a bellwether to gauge the performance of stocks overall, has generated a total return of 647% during the same time period.Clearly, Ford hasn't panned out as an effective wealth-building vehicle. But maybe the future will be different. Could this Detroit auto stock, which has lagged the broader market in the past 20 years, set investors up for life? Recen ...