We all hope for a cleaner future and an eco-friendly means of transportation. Unfortunatly this is not the answer, the Daido hydro-car is only 7.5-inches in length. Manufactured by Daido Metal Co. of Japan and will be available later this year for $200 USD or 20,000 Yen. The tiny water powered machine measures 7.5 x 4 x 3.25 inches and weighs 350g with a full tank (of water of course). The MPG is still unknown.