ARE "HYPERMILERS" A MENACE ON THE ROAD? "There are hypermilers who claim to get over 100mpg from their Priuses and Insights. The problem is that techniques like pulse and glide involve significant fluctuations in speed." Don't do this where there's traffic. Interesting discussion in the comments. Plus, this: 104 eco-driving tips. And should we be rating cars based on gallonage rather than mileage?
