Even if you don't know much about cars, the word "HEMI" might still mean something to you. It's become a synonym for big, powerful engines. See more »

It's possible that someday there may be no need for a lot of the components that you currently find under the hood of a car or truck. That is, if the vehicle is equipped with in-wheel electric motors. See more »

Internal combustion engines aren't going away anytime soon. And since a practical alternative can't be ready for use within the next few years, we need a better internal combustion engine in the meantime. See more »

The quasiturbine engine takes the Wankel concept and improves on it: Instead of three combustion chambers it has four and the setup of a quasiturbine allows for continual combustion. Learn all about the quasiturbine. See more »

A rotary engine is an internal combustion engine, but it's not like the one in most cars. Learn about the unique rotary setup and how it compares performance-wise to a piston engine. See more »

The sleeve-valve engine may have already been dismissed as a historical relic; however, at least one company is seeking to bring the sleeve-valve engine back into action -- with a few modern twists. See more »

The Stirling engine is a heat engine that is vastly different from the internal-combustion engine in your car. It has the potential to be more efficient than most types of engines, but it hasn't made it into mass production yet. Find out why. See more »

The Grail Engine takes a variety of modern, cutting-edge engine technologies and puts them all together in one package. Honda and Ford have already shown interest -- should the rest of us? See more »

It may take a bit of time to understand how this ball gets rolling; but once you get it, you'll see how it just might take hybrid auto engineering to the next level. See more »

High gas prices are driving people to look at alternatives to fossil fuels, such as a turbine designed by the father of alternating current, Nikola Tesla. See more »