Hi Paul and Samwick,
I take your points about using a more efficient Gas Turbine hybrid in as family car.
Unfortunately it would not provide any immediate help to the worlds starving. Since it would take years, if ever' for the price of oil to drop to ensure cheap food.
Human greed is such that unless the farmers were to get more money for grain production than the ease of Bio fuel, little will get done.
I would like to see a law brought in restricting BioFuel crops to prehaps just a few percent of normal food cultivation.
Prehaps even a ban put on BioFuel exports, if it exceeded a small percentage of the total land used for food?
Prehaps the building of more storage Grain Elevators might help, as well as fertilizer production?
Thinking of Pauls excellent idea of using the more efficient Gas turbine in family cars.
I was prepared to give it a no no, because of the hot fast exaust gasses might burn kids and pedestrians.
I was thinking of aircraft turbines on a smaller scale. But I was totally unprepared for my find when I searched for the possibility of a small turbine.
In fact I was amazed! A turbine just 6 inches long! Yet another smaller than a pak of matches!
Yikes!. If this is the future.....bring it on.
http://www.pinktentacle.com/2007/08/worlds-smallest-gas-turbine-engine/ And
http://web.mit.edu/newsoffice/2006/microengines.html 
