GreenCarPlanet.com

GM’s current offering of vehicles in the U.S. is decidedly unremarkable in the realm of fuel economy. However, if their lineup of prototype and limited production vehicles is any indication of things to come, GM seems to be catching up with what consumers want.

You may think that these cars are the same but they are not. There are many differences between the two aside from the fact that one car plugs in and the other does not. The disadvantages of the plug in cars are that they cost more than the standard [...]