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2. The Most Fuel-Efficient Cars (That Aren't Hybrids) - AOL

   www.aol.com/most-fuel-efficient-cars-arent...

   The most efficient car on the list, ... When gas prices soar, the Sentra's small fuel tank can make filling up less heartbreaking than larger cars with even bigger ones. Base price: $21,745.

3. What is a mild hybrid (MHEV) car? - AOL

   www.aol.com/mild-hybrid-mhev-car-153000495.html

   The goal of a mild hybrid car is to consume less fuel, but it does so in a unique way that makes them less expensive than a full hybrid. MHEVs use low-output electric motors typically fed by a ...

4. Energy-efficient driving - Wikipedia

   en.wikipedia.org/wiki/Energy-efficient_driving

   Example energy flows for a late-model (pre-2009) midsize passenger car: (a) urban driving; (b) highway driving. Source: U.S. Department of Energy [4] [5] Most of the fuel energy loss in cars occurs in the thermodynamic losses of the engine. Specifically, for driving at an average of 60 kilometres per hour (37 mph), approximately 33% of the ...

5. 7 Best Fuel-Efficient Cars For Travel This Summer - AOL

   www.aol.com/7-best-fuel-efficient-cars-160051801...

   If you're looking for ways to save money on driving this summer and your car doesn't get a lot of miles per gallon, it might be time to change out your vehicle. Discover More: 9 Most Reliable Cars ...

6. Energy efficiency in transport - Wikipedia

   en.wikipedia.org/wiki/Energy_efficiency_in_transport

   This means that a bicycle will use between 10 and 25 times less energy per distance travelled than a personal car, depending on fuel source and size of the car. This figure does depend on the speed and mass of the rider: greater speeds give higher air drag and heavier riders consume more energy per unit distance. In addition, because bicycles ...

7. Hybrid vehicle - Wikipedia

   en.wikipedia.org/wiki/Hybrid_vehicle

   Though hybrid cars consume less fuel than conventional cars, there is still an issue regarding the environmental damage of the hybrid car battery. [ 75 ] [ 76 ] Today, most hybrid car batteries are Lithium-ion , which has higher energy density than nickel–metal hydride batteries and is more environmentally friendly than lead-based batteries ...