Here’s an interesting article from Automotive News about what the future may hold for filling stations. It just conjures up a great visual…

If all the alternative-fuel vehicles at the Detroit auto show make it to the showroom, your local filling station could become the automotive equivalent of a soda fountain. There could be many flavors of fuel on tap.
The usual three grades of gasoline would be joined by:
E85 ethanol.
Low-sulfur diesel fuel.
Premium diesel with no sulfur and higher cetane (the diesel equivalent of octane).
Biodiesel.
Compressed natural gas.
Liquid hydrogen.
Gaseous hydrogen.

Nice analogy – soda fountain, buffet … why not? This is America. Freedom of fuel choice for all.