The Aptera Hybrid prototype looks a little strange, but this three-wheeled vehicle promises astounding fuel efficiency. Do you know how it works? Take the Aptera Hybrid Quiz and find out. See more »

Once upon a time, an eco-friendly car buyer could go green and save money on taxes at the same time. You could still do that -- to an extent -- but the rules have changed. See more »

Vrrrrrmmmmm! Vrrrrmmmmm! Electric vehicles have seemed like the wave of the future for decades now...so why aren't we all driving them? Test your knowledge of plug-in cars with this quiz. See more »

Advanced hybrid systems build on current traditional hybrid technology by improving battery power, fuel efficiency, on-demand vehicle output and driver conveniences, too. But how do they do it? See more »

The hybrid cars that we're familiar with use nickel metal hydride battery packs. But the next generation of hybrids, like the Chevy Volt and Fisker Karma, will use Li-ion battery cells. What's the difference? See more »

Most people know gasoline-powered hybrid cars provide fantastic fuel economy. When you consider that the newest diesel engines are cleaner, more powerful and reliable, wouldn't it be great if an automaker built a diesel hybrid? See more »

You probably know that a hybrid car uses both a gasoline engine and an electric motor. But greater complexity often translates into less efficiency. So how does this combination of power sources actually cut fuel use? See more »

Electric car charging networks are operational in several parts of the world. However, they're mainly for demonstration only, at this point. When might a charging network be available in your neighborhood? See more »

The furor over the effects of climate change has placed a spotlight on eco-friendly automotive technology. Automakers depend on electric car labs to bring that technology to the masses. See more »

Electric vehicles, especially EVs powered by fuel cells, are a compelling alternative to gasoline-powered cars. Find out how today's electric cars work to get you where you're going without gasoline. See more »