Technology-wise JLR have spent a huge amount of time over the last few years in researching alternative power systems with significant work undertaken by the likes of Ricardo for them. This concept isn't the end result of all that though, it's more of a pipe-dream to get column inches, but the company is pretty serious about making inroads into this area. From my personal perspective though the auto industry has currently got a very real reluctance to make The Big Decision and push a model range that is a real break away from traditional power. For all the marketing hype surrounding the likes of the Prius etc they are very much fancy dressing to get people's attention. It's a justified reluctance too as the infrastructure to support electric power or hydrogen power or whatever else just isn't there, and won't happen unless the cars get built. Chicken, eg, and all that.
As far as the styling is concerned, it's quite pretty but that's daming it with faint praise, as Jags should be jaw-dropping and this concept thing just doesn't do that. If that was announced tomorrow as the new XK then it would be very nice and people would buy it. I would if I could. But sports cars from Jaguar were always a bold move and this looks ike a today car, not a tomorrow spaceship.