There's a new Washington Post article that cites recent market research as proof that people don't really care about fuel economy, even if resources are becoming more scarce, prices for fuel are increasing, and we are generally fighting over oil in the middle east. The number one top consideration is price, make and model was second, and only 3 percent of those polled listed fuel economy as their "most important" consideration. Now this looks really bad, as the author notes, but I'm sure fuel economy was in the top two or three considerations for a lot more people. Still, it just goes to show that people don't really care about the environment or how much they're shelling out to refuel their vehicles, and the value of the time it takes to pump fuel so frequently. Perhaps some mathematical literacy would help here.
Since I originally posted, I came across this article entitled "How to Beat The High Cost of Gasoline. Forever!" It's all about using ethanol. There's an obvious better solution. Don't buy a gas guzzler. Drive less, and drive more efficiently when you do drive.