So we take the Airstream concept of aluminun skinned trailers which has been around since the 1930's add one American company losing money making cars:Ford. And we have a winning combo here?
Well, hey. I like innovation. Lets see how it works out. But where the heck do you get hydrogen refills. And when the battery pack needs replacing, whats the cost...etc.
When the Wright brothers flew their airplane no one asked where all the airports were located, or how long the engine would last, or how long the wings would last.
The fuel stacks and batteries are in advanced research stages at this time. They will continue to evolve. So will hydrogen extraction technology. The hydrogen fuel stations will also evolve and become more numerous.
My dad once told me that he was holding off on buying a color tv until the technology was perfected. That was back in 1970. He eventually figured out that it would never be perfected.
Hydrogen vehicles are where tvs were in 1960. Will they pan out? No one knows.