I’m getting a new car & want what is best environmentally. Should I go diesel (biofuel) or hybrid?

Do you think powdered algae jet fuel should be grounded?

It seems to burn well but would moisture be a problem? http://algaeaviationfuel.com/

Question: Should biobutanol start being used in the place of gasoline?

Since so many of us have gasoline cars this would make the most sense rather than making us by insanely expensive gas cars. Biobutanol can be used in unmodified gasoline internal combustion engines. http://en.wikipedia.org/wiki/Biobutanol#Production_of_biobutanol