Infrastructure has to be built one sale at a time. Tesla is demonstrating one way to do it with their supercharger network, with trickle chargers in the home, and supercharging stations scattered around the country, trying to bridge gaps in coverage.

A hydrogen infrastructure will look different, because pressurized hydrogen isn't as ubiquitous as electricity. They might have better luck with a regional approach, selling commuter cars in one city, and building up an infrastructure there just to prove it can be done. This could go hand-in-glove with a partnership with a rental car company, where your car price comes with discounted rentals for cross country trips. They might even be able to start with some fleet approaches: delivery vans, local taxi services, city government inspectors, etc. Get a few vehicles out there first, then expand into the consumer market. Once the hydrogen delivery trucks start making rounds to carry fuel to the fleet terminals, it's not a stretch to get them delivering to consumer facing refueling stations.

Or maybe hydrogen delivery service stations could be provided in a novel format, like a standard shipping container. Build a tank and pump system into a steel box, and make arrangements with a company like BP to drop one in the parking lot of an existing refueling station whenever you sell a car that's not within 10 miles of an existing station. BP may like drilling for oil, but their primary business is selling vehicle fuel. This is an opportunity that doesn't bypass them, like home charging stations do.

The one thing that would be likely to fail would be to take billions of dollars of investment, and build a national network of thousands hydrogen refueling stations before the arrival of millions of hydrogen consumers.