The "YeZ" certainly isn't the first solar-powered car design we've seen, but it decides to take the concept one step further. Just like a tree, the two-seater sucks in carbon dioxide and releases it as oxygen. Heck, it's even got the look to match, as the canopy over the driver and passenger is like one big leaf.
The energy created by this process, small wind turbines fixed to the wheels and solar panels on the vehicle's canopy are what will keep it rolling. Of course, it's all just a concept at the moment, but you can see more of YeZ in the gallery below.