Citroën GT: Worth it, or just hype?

GT by Citroën. I'm more than a little late on this topic, but how could you not talk about a 770+hp hybrid concept supercar? Also, it surely doesn't fall short on aesthetics, either.
http://pictures.topspeed.com/IMG/crop/200812/citroen-gt-concept-i_600x0w.jpg
Sure, there are only 6 in the world, but looking solely at specs, it is pretty close to a not-very-exclusive-hybrid-supercar: The McLaren P1.

So, I need some opinions: Is the GT by Citroën hyped, or really special?