Introduced at the Frankfurt Auto Show in 2003, the Toyota CS&S concept car is a mix of real-world technology and futuristic gadgetry. Find out what makes the CS&S an out of the ordinary concept car. See more »

Hybrid cars aren't generally thought of as sports cars -- not right now, anyway. But if the Toyota FT-HS Hybrid Sports Concept ever makes it into production, you may have a very different opinion. See more »

When it debuted at the Geneva Auto Show in 2007, many people thought Toyota's Hybrid X concept car would be the next-generation Prius. We know better now, but what does the future hold for Hybrid X? See more »

The 2010 Toyota Prius is the third generation of the model that has practically become synonymous with the term hybrid car. But what makes this design so popular among hybrid car buyers? See more »

The Astrolab is Venturi's latest energy-autonomous automobile. This sporty lightweight literally gets a charge out of the sun, thanks to the photovoltaic cells covering its surface. See more »

When it comes to alternative fuels for cars and trucks, you may think you already know all the options. But do you think you can you list 10 alternative fuels already in use? We can. See more »

For conventional gasoline and diesel-powered vehicles, fuel economy numbers may be the toughest standards to meet in the coming years. But what issues will alternative fuel vehicles need to overcome? See more »

Air pollution and fuel efficiency used to be the last things car buyers considered before making a purchase. Times have changed, and green drivers need to know their vehicle's air pollution score. See more »

The United States Environmental Protection Agency can help you choose a car that's environmentally responsible. Do you know your vehicle's greenhouse gas score? See more »

The Toyota Prius and Prius Touring models share many similarities as well as differences. Most of the commonalities lie in the drivetrain, but the Touring's perks set it apart from the Prius. See more »