I just got back from a trip out to SLC. On the way west, going across the sometimes boring, sometimes breathtaking expanses of Wyoming and Utah, I was driving into a pretty stout headwind. It brought my mileage down to below 20 mpg for just about the whole trip. I was actually thinking something was wrong with the car until I made my first fuel stop (pretty much empty at 270 miles) when I got out and realized how hard it was blowing.
I'd forgotten how much drag my car has, even without roof rails, spoiler and being lowered. Fortunately, according to NPR, gas prices are supposed to fall very soon
Aw man, I can relate. In the winter when I throw my snowboard roof rack on, my mpg drops drastically no matter how I drive. I can barely squeeze 270-280 miles out of a tank before the low fuel light comes on. When I have it off during the rest of the year, I can easily get 320+ out of it.
I've got a 2001 Honda Insight in the stable. 185k on it and my wife uses it for a DD (green). It isn't much fun to drive but nothing ever breaks on those things. Last weekend we took a trip from Syracuse NY to Providence RI, then north to Boston and then back to Syracuse. Averaged 63mpg at 70 mph. That's about 600 miles on one 10 gal tank of gas. Needless to say, if the weather's nice it's the Subie around town and the gas-sipper on the open road. I wonder how it would do with a big engine in it: at idle the stock 3banger shakes it like a paint mixer.