There is a company that can be found online that is making a new way to turn your regular gas vehicle into an efficient hydogen car. These kits can be found for 4, 6, 8, and 10 cylinder vehicles, ranging from small sedand to pick-up trucks. This company, found at http://www.dry-cells.com/, provides high quality HHO ( Hydrogen, Hydrogen, Oxygen) systems. The 8 and 10 cylinder units cost $639.00 dollars with a shipping weight of 15 pounds. The 4 and 6 cylinder units cost $499.00 and has a shipping weight of 11 pounds. According to this site, everything you will need to install the hydrogen system into your car. After this installation, you will be able to save your gas mileage and your emissions, both of which are major things in this world at the present.