Fuel Efficiency

Fuel efficiency has become an extremely important topic in today's world because of rising gas prices, the need to cut our carbon footprints, and the need to cut dependence on oil-rich nations. Check out these great articles on fuel efficiency.

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Replacing the battery pack on your hybrid can easily set you back $2,500 or more. However, the prices for these components are changing as quickly as the hybrid car industry itself.

By Eric Baxter

The strangest thing about the invention of the first hybrid car isn't who built it (a German engineer named Porsche), but when he built it -- at the turn of the 20th century.

By Christopher Neiger

If you're a member of Sam's Club, then you already know the great deals a membership can provide for you and your family or business. But can you really buy an electric car through Sam's Club, too?

By John Fuller

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Did you know your car is operating at its lowest possible fuel efficiency when you're in stop-and-go traffic or if you're at a standstill and the engine continues to run at idle speed?

By John Fuller

Honda's taking a new approach to hybrid car design with its latest concept -- the CR-Z. But what makes the CR-Z so different from every other hybrid car currently on the road?

By John Fuller

Most of us have been told that driving with the air conditioner switched on uses a lot more fuel than simply rolling the windows down to cool off. But is that always true?

By Christopher Neiger & Talon Homer

There's little doubt that the 2010 Fisker Karma, a plug-in hybrid electric vehicle, has the looks to compete with any luxury sedan currently on the market. But how does the Fisker Karma perform?

By Eric Baxter

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Hybrid cars are engineered to operate at peak efficiency in specific environments. But what happens when the environment is dramatically changed? Can a hybrid car perform just as well in cold weather?

By Jamie Page Deaton

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.

By John Fuller

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?

By John Fuller

The race is on to build the world's cheapest alternative fuel car as fossil fuel supplies continue to plummet and the planet's population continues to soar. This race has already seen several lead changes.

By Eric Baxter

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From the start, Porsche has produced a lineup of cars that are exciting to drive. The latest Porsche -- the Porsche Panamera -- is no exception. But do you know what makes the Porsche Panamera unique?

By Patrick E. George

Replacing a battery in a typical car isn't a big deal, and relatively speaking, it isn't expensive either. Hybrid car battery packs, however, can cost thousands to replace. Is reconditioning cheaper?

By John Fuller

If you've been doing your homework on hybrid cars, then you may have come across the term "mild hybrid" at some point in your studies. But how does a mild hybrid differ from any other hybrid car?

By John Fuller

Most hybrid cars have instant miles per gallon readout as standard equipment. This feature gives immediate mpg information to the driver. But can this simple device actually save money at the pump?

By Jamie Page Deaton

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In this increasingly green world, automakers are looking for ways to increase product efficiency. Their focus might surprise you: The exhaust pipe.

By Christopher Lampton

Some potential hybrid car buyers never actually buy a hybrid because they feel the batteries are too costly to replace or have a somewhat short life. So, what's being done to improve the technology?

By John Fuller

If you don't drive a hybrid car, you may not know the purpose of a hybrid system indicator. Not only do they monitor the car's vital operating systems, but they help drivers become more efficient, too.

By John Fuller

Hybrid vehicles are eco-friendly because they use less gasoline and produce fewer emissions. However, their reliance on electrical power raises some safety concerns for drivers.

By Christopher Neiger

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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.

By Terry V. Boyce

When you think of a hybrid vehicle, chances are, it's not a pickup truck. You're not alone. But that just may change with the introduction of the A-BAT, a compact hybrid pickup truck from Toyota.

By John Fuller

The 2010 Ford Fusion may have the outward appearance of a typical Ford sedan; however, underneath its shiny skin is a high-tech, fuel-sipping, gas electric hybrid drivetrain that's sure to impress.

By John Fuller

The Honda Civic and hybrid technology seem to be two automotive concepts that were made for each other -- an ideal pairing. But what makes the Honda Civic hybrid so different from the standard Civic?

By Josh Briggs

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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?

By John Fuller

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.

By Kristen Hall-Geisler