The Gen 2 fuel cell is lighter, smaller, and uses overall less material than the Gen 1 fuel cell that was featured in Project Driveway. The Gen 2 fuel cell works toward integrating fuel cells into many different vehicles, not just vehicles larger than the Equinox. GM is also focusing their efforts on shrinking their hydrogen storage tanks from three tanks to two to tanks, which will allow for a greater ability to fit hydrogen technology into a wide arrange of vehicles.
The obvious question that comes up is "If GM is developing all this technology when will consumers see it?" According to the article, this technology will hopefully appear around the 2015 model year. Of course, there is a lot that depends on this as well. GM plans to start in urban areas where hydrogen fueling infrastructure can be built. It looks like LA will be one of the first deployment areas, as it presently has some hydrogen infrastructure. However, the key to making hydrogen widespread is having a plan to develop a hydrogen infrastructure across the country, yet the US government has no set agenda or idea on how best to do this as of yet.
The one positive thing is that GM is still focusing on developing this technology and they are focusing bringing the car industry and their vehicles into the future with the most cutting edge technology.
article source: click here