On the issue of oil scarcity, we are exacerbating scarcity of product with our ever increasing "need" for power and speed. Take the mainstream Honda Accord. 1977 specs: highest output engine...1.6 litre, 68 horsepower. weight...2000 pounds Honda Accord 2007 specs: highest output engine...3.0 litre, 244 horsepower engine. weight...3200 pounds. Leave the SUVs out of the equation and look at what the public demands. You need 244 horsepower in an "economy" car? The American consumer wants power and size in their modes of transportation, so why not innovate and change the fuel. I say a Suburban in every driveway...powered by hydrogen or whatever we can come up with.