Future Automobile Technology

How can we modify the petrol driven engines to water driven engines in our existing car? What Technology?
It is heartening to note that Japanese have come up with a technology to run future cars in water. If the same technology is introduced in India, what is the technology available with us to convert the existing petrol driven cars into water driven cars.We need to reengineer our current technology, suitably modify the existing petrol/diesel driven cars/two wheelers/trucks, so that public gets maximum mileage out of it. Also cost components are to be factored in to our consideration to revamp the existing models of cars / two wheelers/trucks. It woulld be better if Government of India takes up this issue and encourage all automobile manufacturers to intensiy their R&D efforts for a good pattern/paradigm shift to develop vehicles run on water/compressed air to offer shield to the mass public.
An honest, aggressive and committed effort in this direction is needed at global level which would be real pathfinder and conducive to diffuse the current oil crisis.
venkatraman
There have been numerous things like this over the last 50 years, and they all have been bought up by the fuel companies, and locked away. The fuel companies have spent trillions of dollars over the years seeing to it that only petroleum products are readily available and all vehicles use their by-products. By the way the new Technology is called a “hydrogen Fuel Cell”. And the technology is years away from being safe or economical.
Future Automotive Technology: Speeding Ahead