I drove 1800 miles in a Hydrogen Car

I really want to see the mirai be a much larger production vehicle. I love automobiles and would like to see EVs reach equivalence in quality and value. The auto industry has been making vehicles with shorter and shorter service life and that is a huge waste to consider just as much as our carbon emissions. New models, features, technology is added each year further incentivizing shorter terms of ownership.  My rant could probably go on for hours as I've worked on Toyotas for years. Thanks for the read, here is some questions I could come up with

What are the life expectancy of the vehicles? the fuel cell components? 
What are the costs in rare materials? 
Are these materials accessible in large enough quantities?
How serviceable are the vehicles when they break down or malfunction? 
How can they be safe to maintain outside of highly specialized facilities? 

What is Toyota doing to help reduce auto waste in America?
How much performance can a fuel cell vehicle have, can it be competitive with standard EV or IC vehicles?     <--- the fun question I hope.