https://www.cnet.com/roadshow/news/toyota-project-portal-2-hydrogen-fuel-cell-semi-truck/

            Toyota's
     efforts in developing hydrogen fuel-cell powertrains aren't limited to passenger cars -- it's also working to make semis a bit greener.

> Toyota has unveiled the second iteration of its Project Portal hydrogen fuel-cell electric semi truck. The first version, which started testing last April, was created as a skunkworks project and made it from concept to production in just about a year, with Toyota's engineers working out of a garage in Michigan.