Just as gas prices reach record highs, we review the ranks of the most fuel-efficient gasoline-powered cars you can buy. These cars get 40 mpg on the highway and range from family sedan to wacky runabout.
What will happen to EV batteries when they're too old to store and deliver adequate power? The recycling of nickel-metal hydride batteries from hybrids points the way.
While the gauges can be useful, they typically report that your fuel economy is better than it actually is.