TETRA FUEL CARS!!! Of the four fuels...NATURAL GAS would be the cheapest.

TETRA FUEL CARS!!! Of the four fuels...NATURAL GAS would be the cheapest. In Belo Horazante, Brazil, MAGNETI MARELLI CONTROL SYSTEMS is making cars which have the option to run on four different fuels. SILVERIO BONFIGRIO, presiident of Magnetti Marelli Control Systems stated that the cars, through an electronic control unit or ECU can run on Petrol, Alcohol, Gasahol or compressed natural gas. "Of the four fuels" he stated "Natural gas would be the cheapest". Source: Science channel television, Sunday Sept. 21, Sara Groen: reporter