It weighs roughly 1000 pounds. That immediately renders it totally unsafe as a vehicle and little better than a deathtrap. I suppose it's better than a motorcycle.
On the other hand, it's potentially useful as a technology demonstrator. I'm all for developing new technology, because while it might start out in a useless or undesireable form, further improvements may result in a truly road-worthy car. The Ford Model T isn't really road worthy by today's standards, either, but it was an important step in technological progression.
Unfortunately, the article mentions little about the technology. It simply goes on and on about the designer. The first thing I want to see is whether this car actually works as well as advertised--with a 180 MPG claim (british gallons I assume), it's up to them to prove it.
J_A_B