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Originally Posted by All Darc
Unless USA have a secrete technology to much higher & easier corn production compared to Brazil, sugar cane it's more effective, otherwise Brazil would use corn, since Brazil also have a very high cattle and vegetable oil production for exportation.
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It's not simply a matter of a higher productivity with corn crops compared to sugarcane, you need to remember not every region is suitable to sugarcane, while there are many varieties of corn that are better suited to different climates.
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USA, few years ago, was interested on Brazil's sugar cane ethanol production.
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With so many gas-guzzlers there, I'm sure it would become harder to sell. Not even the cold start would be all that hard to overcome...
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I wonder how many cars could they move if was possible to collect methane from cows. 
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Corn-based ethanol ends up being somehow the closest approach, as it ends up decreasing the amount of methane released by beef cattle.
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By the way, just for brazilians : Joćo Doria would try to feed the poor using corn destilation leftover, if Brazil had a corn ethanol program.
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It does surprise me that some businesses that provide meat-replacement items for vegetarians didn't try using DDG corn protein as a cheaper alternative to soy concentrated protein.