Hideously complex
Let's keep in mind that a car is essentially just a tool to move people & a few belongings from A to B & back. Four wheels, an engine, weather protection, heating (+ aircon in hot places), lights so you can drive at night. Maybe a radio to sing along to :-)
Even in a world where car manufacturers are now forced by regulations to add layers of unwanted complexity, this 1.8 tonne over-engineered monstrosity must take the biscuit.
(and don't even get me started on the stupidity of hydrogen as a fuel)