Spectrum Online - Top 10 Tech Cars:
"Your mileage may vary.' Yes, indeed—it could be as much as 30 percent lower than government ratings, as some new owners of hybrid-electric vehicles discovered, to their dismay, last year.
If 2004 began with drivers in the United States and a few other places giving hybrids a heartfelt hug, it ended with a more subdued embrace. One of the reasons was disappointment over real-world mileage. Official ratings for fuel use, based on the outdated driving patterns of U.S. government tests, turned out to be a poor predictor for what typical buyers could expect."
