- Best cars for fuel economy
- Best in class: Fuel efficient vehicles
- Fuel economy vs. performance
- Cargo capacity vs. mpg
- Hybrids
- How hybrids work
- Guide to today's hybrids
- Future hybrid vehicles
- Saving fuel
- New mpg comparisons
- Low-rolling-resistance tires
- Premium gas vs. regular
- Gas saving devices
- Alternative fuels
- Guide to alternative fuels
- The ethanol myth
- 2008 Flexible-fuel vehicles
- 2000-2007 Flexible-fuel vehicles
- Hydrogen fuel-cell cars
- BMW Hydrogen 7
- The ultimate green machine
- Fuel-cell cars race to reality
- Honda FCX fuel-cell car
- Fuel cell cars of tomorrow
- For subscribers
- Homegrown fuels
- Dollars and sense of hybrids
In The Spotlight
Most fuel-efficient cars
See our list of the most fuel efficient cars.Most fuel-efficient SUVs
Check out which SUVs offer the best fuel economy.Best and worst in fuel economy
Our lists show the vehicles within each category that achieved the best or worst gas mileage.How your driving affects mpg
Find out how to save money on gas with your current car.How hybrids work
Our primer will help you understand how hybrids vehicles work.Car Ratings Research test scores, reliability, safety, fuel economy & more 
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