We have seen a lot of sustainable transport device design. Some are hybrid powered while others are human powered. The Diwheels is another sustainable transportation device designed to produce zero carbon emission because it is completely electric powered. The device looks pretty much like what you see in the Transformer movie and I find it not for those with motion sickness. You might wonder why it is not good for people with motion sickness, simply because, the Diwheels allows its riders to drive even when upside down, despite having the slosh control to keep the vehicle in place while moving forward. Watching the video might explain everything.
Source: The University of Adelaide