This one-person "personal mobility" vehicle, as Toyota describes it, can actually make itself smaller when moving slowly to take up less space, and then spread out more to optimize its center of gravity for higher speeds. At an eye-poppingly light 396 pounds, and measuring no more than 6 feet long, the i-unit (enough with the freakin' i-naming already!) boasts a three-foot turning radius, is powered by a lithium-ion battery, and includes onboard systems that store your favorite music and customize the body's color based on driver preferences.
It all sounds incredibly cool, and ultra-environmentally friendly, but you wouldn't catch me in one so long as I had to share the road with 4-ton Hummers. In other words, at this stage, categorize the i-unit as wishful thinking.