Who would have thought that a concept as simple as compressed air could be a viable automotive technology? Sure, we all fill our tires with the stuff, but some automakers - MDI, for one - are considering compressed air as an energy carrier, like a battery. Whether a vehicle is engineered to run solely on air power or if the energy is stored as part of a hybrid system, the very air we breathe could provide propulsion for our vehicles.

What's Number 8?

The Automotive X Prize announcer used it. We've been using if forever. And, until recently, MDI and Zero Pollution Motors were still calling their vehicles the Air Car. Now, though, to avoid confusion as much as possible, the preferred term is "Compressed Air Vehicle" (don't look now, but the ZPM website still says Air Car). At the New York Auto Show this week, we finally had a chance to sit down with Guy Negre, the creator of the CAV, and his partner Shiva Vencat (Vencat also provided translation for most of Negre's answers, as I don't speak French) for a talk on what happens next in the compressed air vehicle world.

The CAV team was in New York as part of the Automotive X Prize announcement, and I'm going to have to say that MDI/ZPM seems to be one of the stronger potential entrants into the race. While the design of the vehicle in New York won't appeal to everyone, I think the renderings for the MiniCat (is that what it's called?) could result in a solid X Prize entry. Plus, considering that deals with Tata have already been signed and the air car (whoops) technology has been tested for quite some time, the vehicle won't be bowing out of the race early, I don't think. To hear what Vencat and Negre have to say, listen to the interview yourself.