https://www.cnet.com/roadshow/news/toyota-fuel-cell-mass-production/

Hydrogen fuel-cell vehicles remain but a tiny part of the new-car marketplace, but

            Toyota
     plans to work on that by lowering the costs of the vehicles and building them more efficiently. That's the latest from Reuters, which reports that Toyota still continues to invest in fuel-cell cars as it prepares to launch a second-generation 
            Mirai
     within the next few years.

> Toyota currently sells the Mirai fuel-cell car but sales are slow. Last year, the automaker sold about 3,000 Mirais worldwide -- far below its goal of selling 30,000 fuel-cell models annually by 2020. One of the problems that needs to be resolved, according to Reuters, is speeding up production. Because the Mirai is hand-built and subject to careful inspections, Reuters says Toyota can build only six of them per day. Moreover, current fuel-cell stack designs require expensive precious metals, with the Mirai reportedly requiring platinum, which keeps the cost of the vehicles higher.