Like HowStuffWorks on Facebook!

Auto | Fuel Efficiency | Fuel-efficient Vehicles

Fuel-efficient vehicles are extremely important. Because we need to cut our fuel consumption and find other ways of powering cars, fuel-efficient vehicles are now very popular. Check out these great fuel-efficient vehicle articles from HowStuffWorks.

Featured
How Electric Car Batteries Work

Electric vehicles have been around since the first half of the 19th century; however, until recently, no reliable, mass-producible batteries were manufactured that could make electric cars competitive with gas-powered vehicles. That's beginning to change.


Micro-lattice Metal: The future of lightweight cars?

Micro-lattice Metal: The future of lightweight cars?

Lightweight microlattice metal just might be the future of featherweight cars. Learn more about microlattice metal at HowStuffWorks. See more »

Spend Green to Drive Green

Spend Green to Drive Green

How much do you know about green vehicles? Keep reading to learn about the greenest cars on the market. See more »

Do solar powered cars cause pollution?

Do solar powered cars cause pollution?

Do solar powered cars cause pollution? Keep reading to learn about solar powered cars and if they cause pollution. See more »

10 Best Green Cars

10 Best Green Cars

How much do you know about the best 'green' cars? Keep reading to discover the 10 Best Green Cars (Plus: the Worst Offenders). See more »

Will solar powered cars ever take over the streets?

Will solar powered cars ever take over the streets?

Will solar powered cars ever take over the streets? Keep reading to discover is solar powered cars will become a reality. See more »

How Green are Automotive Lithium-Ion Batteries?

Fossil fuels (like gasoline and diesel) are running out and getting a bad rap for nasty tailpipe emissions -- and rightly so. Learn more about how green are automotive lithium-ion batteries. See more »

How the 2010 Honda Insight Works

How the 2010 Honda Insight Works

The 2010 Honda Insight is a little different from the earlier models. Learn what's new about how the 2010 Honda Insight works. See more »

Toyota Prius Pictures

Toyota Prius Pictures

See pictures of the Toyota Prius. See more »

How GM's E-Flex Propulsion System Works

How GM's E-Flex Propulsion System Works

GM's E-Flex Propulsion System is a new platform that will power the highly anticipated Chevrolet Volt sedan. Learn about GM's E-Flex system. See more »

Are grease cars legal?

Are grease cars legal?

A grease car can save you a lot of money on fuel, but can it also cost you in fines from the government? Learn about grease car legality and the EPA. See more »