While GM may have a future as a standalone car company over the next decade, Ford does not. Its market cap is down 42% over the past five years, while GM’s is close to flat. The savings in a combination would be well into the billions of dollars. A marriage of the two also could compete effectively with Toyota, VW and perhaps the new Fiat Chrysler and Renault combo. GM also has the advantage that it is considered to make among*the most dependable American cars.