With a big changeover in fuel source happening among private cars, public transportation needs to follow suit. Now, many transformations are beginning to be seen in this sector, but there can stand to be a lot more. The Eco Taxi concept is both a private cab and a shuttle bus, something that is not really seen in North America.
When you are in the downtown core of any city, it seems cabs always outrank civilian cars 7 to 1, which is why it is so important that cleaner technologies be developed for them. Personally, I think having big cabs like this is a fantastic idea. Think of how many more ways you can split the fare!