OBVIO! From the San Francisco Intl. Auto Show

Gizmag has a feature about a new Brazilian "trybrid" automobile that can run on gasoline, ethanol, any combination of the two, or electric motor. Realistically, it is a hybrid with an internal combustion engine and an electric motor. But the ICE can run on gasoline, ethanol, or any combination. So please excuse them for calling it a "trybrid."

Brazil has made ethanol a signature technology for the national economy. Sugar cane produced ethanol is more efficient than corn produced ethanol. Many economists believe the yield is not economical, even with cane. Time will tell.

Regardless, the automobile itself has many interesting features, including a continuously variable transmission, which might attract some buyers, and certainly will attract curiosity seekers.

My point of view is that pluggable hybrids (using any number of ICE fuels) are the most logical technology for driving automobiles at this time. Fossil fuels are an excellent mobile store of energy, but they do contribute to pollution, and the hydrocarbons could probably be better used as chemical feedstocks.