SmartWay: The EPA's Green Vehicle Ratings
How green is your ride? The Environmental Protection Agency's new SmartWay ratings, part of its Green Vehicles Guide, make it easy to find out.
From Womb to Tomb: What's Really Green?
A "green car" may get great fuel economy, but did you consider how green is it to manufacture, or what happens when it's junked? We did.
Explained: 2008 EPA Fuel Economy Ratings
The fuel economy estimates on 2008 models will drop significantly, and hybrids get hit the hardest. The new number will reflect "real world" driving habits, but lower gas mileage numbers don't mean thirstier cars.
Shopping For a Fuel-Efficient Car
Shopping for a hybrid, or any car that delivers good fuel economy, presents a different set of challenges. We outline the basic buying steps for you in this story.
What Do We Do While Waiting for Hydrogen?
If mass-market hydrogen cars are decades away, what do we do right now? The recent Sustainable Energy Solution conference showed that, when it comes to sustainability, everything old is new again.
E85 vs. Gasoline Comparison Test
Will E85 help you get better fuel economy, lower CO2 emissions, or save money? Our E85 vs. gasoline test results may surprise you.
The X Prize and the 100 MPG Car
The X Prize Foundation has issued a new challenge: build and race a cleaner, commercially viable, 100 mpg vehicle.
Fully Charged
The wait for highway-safe electric vehicles is almost over — really!
Fueling Up With Ethanol
Riding on the momentum of the president's State of the Union speech, GM has vowed to produce 400,000 E85-capable flexible fuel vehicles in 2006. Is ethanol the solution to our petroleum habit?
How To Help Save the Planet
You may not be ready to buy a super-low-emissions vehicle, but you can do the next best thing to help stop global warming: Offset your car's carbon emissions, making it "carbon neutral."
Diesel Reborn
After a promising start, the diesel's fortunes sputtered. Today its future is bright ? and clean.
2007 Hybrid Sedan Comparison Test
We pitted Nissan's 2007 Altima Hybrid, Saturn's 2007 Aura Green Line and Toyota's 2007 Camry Hybrid against one another. We found that not all hybrids are created equal.
Will GM Win the Great Plug-In Hybrid Race?
Gentlemen, start your (PHEV) engines! In this three-part series, we speak candidly with the inventor of the plug-in hybrid, Andy Frank; Felix Kramer, founder of CalCars.org; and Tony Posawatz, vehicle line director for the Chevrolet Volt and Saturn Vue Green Line hybrids.
Finding Great Perks for Hybrid Buyers
Government agencies and private companies now offer a wide variety of perks for hybrid owners ? from $5,000 cash and discount auto insurance to free parking. Here's how to find them all.
Plug-In Hybrids: Who Saved the Electric Car?
Wouldn't it be nice if you had your own gas pump right in your garage, costing less than $1 a gallon? Plug-in hybrids, embraced as the second coming of electric cars, could make that dream come true.
Diesel, Gas or Hybrid?
One way or the other, you're going to be paying more for a fuel-efficient engine. But whether it's a diesel, gasoline or hybrid remains to be seen.
Don't Believe the Hype
You've probably seen ads touting products that claim to improve your gas mileage. But chances are they won't.
Do You Really Need Premium?
With pump prices soaring, some drivers try to cut costs by buying a lower grade of gas. Is this a safe strategy for the road ahead?
We Test the Tips
Edmunds.com drivers test the top four gas-saving tips ? and get some unexpected results.
Change Your Driving Habits (and Save Gas!)
That surge of power off the line wastes more gas than you'd think. Consider these driving tips that will save you money and provide hidden benefits you're sure to like.
Review: Who Killed the Electric Car?
Conspiracy theories abound in the automotive world. But this anatomy of the murder of GM's EV1 raises issues much larger than just the demise of an electric car.
Understanding Oil Prices
Join us for a look at how world crude oil prices are set and the different factors affecting the price you pay at the gas pump.
How Much Oil Is Left?
Are spiking gas prices ever going to drop? The oil companies know a lot, but they aren't saying much.
What real people are saying about the 2007 Lexus GS 450h 4dr Sedan (3.5L 6cyl gas/electric hybrid CVT)
Review: "We traded in a 2001 Accord EX V6 and a 2003 BMW M3 for the GS 450h. [It] carries people better than the Accord, performs better than the M3 (really) and gets better gas mileage than either. (We get between 26 and 27 mpg.) Visibility is excellent. Controls are perfect. Everybody can find a comfortable seating position."
Favorite Features: "This is my third GPS/nav, and by far the best I have seen. Take a look even if you have rejected them in the past. The Bluetooth integration is great. There is outrageous power at all speeds. Its "rolling start" — more typical of daily use — is even superior to its zero-to-60. Great transmission."
Suggested Improvements: "A car at this level really should come standard with an iPod dock. The trunk space is too limited (due to the battery). Lexus disables many of the nav and Bluetooth functions when the car is moving — good for safety but bad for utility." — Deej
G.M. Going Green
How GM is trying to make its entire company — not just its vehicle fleet — green.
Discover Alternatives
News and info on alternative fuels, plus lists of available and future alt fuel vehicles. From the Alliance of Automobile Manufacturers.
E.P.A. Green Vehicle Guide
SmartWay designations, including pollution and greenhouse gas scores for every make and model.
Review: "We traded in a 2001 Accord EX V6 and a 2003 BMW M3 for the GS 450h. [It] carries people better than the Accord, performs better than the M3 (really) and gets better gas mileage than either. (We get between 26 and 27 mpg.) Visibility is excellent. Controls are perfect. Everybody can find a comfortable seating position."
