The next gear can continually engage at a lower RPM, meaning that the vehicle is ultimately using less gas as it accelerates. (palmenmotors.com)
Owners can burn less gas when they drive, and so release fewer carbon dioxide (CO2) emissions. (scientificamerican.com)
For consumers, we're very close to having many new options that will allow us to purchase vehicles that use much less gas, or no gas at all. (treehugger.com)