When will the electric/hydrogen car become the standard car?

Personally I don't think it will ever become a standard but theroreticly with technology I would say 85 or so odd years with the amount of money and energy expenditure it takes to build a hybrid car you have to drive 120,000 miles to start saving energy. On top of everything else the two largest oil reserves on earth have remained roughly untapped which one is in the US and the other being in Iraq the reason I bring this up because the world runs on supply and demand if there is a steady supply and a steady demand it won't change