Devise Fuelless car
You can make your own car that runs on water by using water for gas. Instead of gasoline, you can make your car run on water. Your car will simply use water as fuel instead of gasoline so that you will simply fetch water from the tap and then fill your car with it. This process is actually based on the principle that water contains a gas called hydrogen which is a combustible fuel.
You will buy a converter which is also called a water kit for $150. You will install the kit inside your engine. The kit is very easy to install and comes with detailed instructions. You will not need any other thing apart from the battery in your car which will provide power to make the converter work.