I found this article which is related to our RAV4EV Toyota/Tesla co-operation and wanted to share
http://thinkprogress.org/climate/2015/04/08/3643876/tesla-toyota-hydrogen-fuel-cell-cars/
For reasons that mostly defy logic, the otherwise shrewd car company, Toyota, is placing a large bet on hydrogen fuel cell cars, starting with the Mirai. At the same time, it has backed away from its partnership with Tesla to build an all-electric vehicle.
Toyota is going to lose this bet. There is little reason to believe hydrogen fuel-cell vehicles (FCVs) will ever beat electric vehicles in the car market.
http://thinkprogress.org/climate/2015/04/08/3643876/tesla-toyota-hydrogen-fuel-cell-cars/