My first car was an '84 Ford Taurus. It caught on fire from me trying to change the fuel pump so that wasn't good at all. Dried leaves on the ground while I was trying to change the fuel pump. Don't do that. Do it on concrete.
And when these advances are made hydrogen can fill critical energy needs beyond transportation. Hydrogen can also be used to heat and generate electricity for our homes. The future possibilities of this energy source are enormous.