Nope, 500 miles of range here the website link https://www.rolandgumpert.com/en/

of course, this range is only correct with best circumstances, in practice it will be less

As far as I can see, this is a nice prototype but not a practical concept. This car is using a methanol fuel cell. They seem to be quite rare yet and not ready for mass production. And there is no mass production of green methanol yet. It would of course be much more storeable than hydrogen.

500 mile range, which is what some people care about -- how far can I go before I have to fill up.

Fossil companies are keen on hydrogen as they can still pump their oil.

I routinely got 500+ miles range out of my diesel TDI Jetta... I believe it was a 2002.

My old Peugeot Partner (2003), can easily go 650 km with plenty of petrol left in the tank. I don't think 800 km would be out of the question.

Edit: according to the specs, it should have a range of 960 km (597 miles) under optimal conditions. It sounds more than I would expect, but then the car is almost 20 years old. Still, the low fuel consumption is one of the reasons I keep it -- it uses less fuel than modern hybrids do.