Can a car run on water?

Don't waste our water!!!

YES! But they are called boats.

Hey Polldaddy, I believe you have disqualified yourselves from any further polling. Might want to check the math on the stats there, genius :)

I believe there is a way for a car to run on water, but why change from one unrenewable resource to another, that is not very smart, especially since we need water to survive, it's kind of an important thing to the human race!

On salt water it could.. check this out:
http://www.youtube.com/watch?v=Tf4gOS8aoFk

Having just paid $83.00 to fill my tank, I am interested in anything that might reduce the amount of gasoline I use. It is indeed possible for a car to run as a hydrogen hybrid virtually doubling the mileage from a gallon of gas. Using the electricity from the battery or alternator, water + an electrolyte can be electrolyzed to produce HHO (basically hydrogen and oxygen). There are simple, less efficient electrolyzers and far more complex electrolyzers that can (and have) produced enough hydrogen to actually power a car. This is not practical but combined with an electric motor for starting, it can and does work.

As far as using an unrenewable resource, it isn't. When hydrogen burns (combines with oxygen) the end product is water. So it renews itself.

If you want to know facts rather than taking the word of someone who obviously doesn't have any real knowledge about the technology, you might check out the Watercar Forum on Yahoo
http://tech.groups.yahoo.com/group/watercar/

it is a sad comment on the state of science education that a majority of respondents picked "yes" (19%) or "maybe" (37%), to a relatively simple question that might have appeared on a test in thermodynamics 101.