The Volkswagen Roller is a new-age roller skate. It’s autonomous, and hands-free. The design comes with two main hubless wheels and two retractable rear wheels. Each roller comes with a hard-plastic s(Cool Designs Inventions)
Meet the ELE SOLAR BIKE, which could run on electricity, power, or your own two legs! The solar panels within each wheel rotate 30 degrees to maximize recharging while the bike is parked. It's still in concept stage, but looks pretty cool to us!