I drove 1800 miles in a Hydrogen Car

The Problem with hydrogen is, that it is just another loss in your power-chain. You are converting electricity to another medium only to convert it back to electricity again and lose a lot of potential in the process, even more than carrying batteries with you and charging them.
But what is even worse is, that hydrogen is right now mainly syphoned off from natural-gas-wells. So FuelCell-Cars are nowhere near of being environmentally friendly.

Gas-Companies are pushing for this tech in the hope to become the next big supplier to fuel everyones mobility once gasoline goes out of business.