The Air Car

The Air Car, called the MiniCAT could cost around Rs. 3,50,000 ($ 8177) in India and would have a range of around 300 km between refuels.
The cost of a refill would be about Rs. 85 ($ 2). Tata motors also plans to launch the world's cheapest car, Tata Nano priced famously at One lakh rupees by October.



PRELIMINARY PLANS TO RUN YOUR CAR ON TAP WATER!
This is simply an efficient way to convert ordinary tap water into gaseous hydrogen and oxygen, and then burn these vapors in the engine, instead of gasoline.
This "minisystem" runs easily from your existing battery and electrical system, and it plugs into your carburetor with simple off-the-shelf fittings.
You will be installing a plastic water tank, a control circuit, a reaction chamber, a hipressure carb/FI fitting, and 3 gauges, and then hooking into your existing carb/FI.
How It Works
Exceedingly simple. Water is pumped as needed to replenish and maintain the liquid level in the chamber. The electrodes are vibrated with a 0.5-5A electrical pulse which breaks 2(H2O) => 2H2 + O2. When the pressure reaches say 30-60 psi, you turn the key and go.
You step on the pedal, you send more energy to the electrodes, and thus more vapor to
the cylinders; i.e. fuel vapor on demand.