![A century ago, the internal combustion engine was a newcomer, and as the technology improved, it became the power source for virtually all modern transportation. But these engines are far from being as energy efficient as possible -- in fact, advancements in the combustion engine could improve passenger vehicle fuel economy by 50 percent. <a href="http://energy.gov/node/582229">Learn more</a> about how researchers are improving the combustion engine. A century ago, the internal combustion engine was a newcomer, and as the technology improved, it became the power source for virtually all modern transportation. But these engines are far from being as energy efficient as possible -- in fact, advancements in the combustion engine could improve passenger vehicle fuel economy by 50 percent. <a href="http://energy.gov/node/582229">Learn more</a> about how researchers are improving the combustion engine.](https://webarchive.library.unt.edu/web/20130215150439im_/http://www.ocrwm.doe.gov/sites/prod/files/styles/topic_hero/public/advanced-combustion.jpg)
A century ago, the internal combustion engine was a newcomer, and as the technology improved, it became the power source for virtually all modern transportation. But these engines are far from being as energy efficient as possible -- in fact, advancements in the combustion engine could improve passenger vehicle fuel economy by 50 percent. Learn more about how researchers are improving the combustion engine.
Today the Vehicle Technologies Program is launching the Apps for Vehicles Challenge, which is looking for the best business plans, app ideas and product designs that use open vehicle data to help vehicle owners save fuel, save money and stay safe.
A one-stop shop for any road trip, My Trip Calculator is an interactive tool that helps you plan a route, pick a car and estimate a fuel costs.
Highlighting our list of the most interesting facts about electric vehicles.
How advanced computing technology is helping major companies lower their R&D costs while developing more energy efficiency technologies.