Gasoline is a great fuel for cars and other motor vehicles. It delivers lots of energy in a small volume, is (or was) readily available, and because it is a liquid, it is pretty easy to work with. But gasoline comes with some big drawbacks too. It is a limited resource. Burning it causes pollution. And it is starting to cost an awful lot of money.
What the world needs is some other liquid fuel that contains lots of energy, is readi » Read more: Is a Water Powered Engine for Real?