Internal combustion engines must idle, rev and shift through gears to stay in a narrow efficiency band, while an electric motor can deliver useful torque across a broad range without wasting energy on ...

NOTE: With this issue of HOT ROD, your Shop Series begins a slightly different and more comprehensive approach to the discussion of engine and vehicle basics. In the coming months, you'll find a frank ...

Astron aerospace has shown a partial prototype of a new rotary combustion engine it claims runs at an extraordinary 60% thermal efficiency, burning totally clean with zero NOx emissions and nothing ...

After years of breathless forecasts about an all-electric future, the global car market is quietly pivoting back toward ...

We all know how a conventional internal combustion engine works, with a piston and a crankshaft. But that’s by no means the only way to make an engine, and one of the slightly more unusual ...

Toyota, Mazda and Subaru are not giving up on internal combustion yet. The Japanese auto giants are forging ahead with the development of new internal combustion engines, which the automakers say are ...

"No replacement for displacement" was the motto that produced some large powerplants during the exciting muscle car era. Nevertheless, this motto was taken to another dimension in the case of these ...

Several days into it, the ongoing auto show in Shanghai, China, continues to capture the attention of the automotive world. The time that has passed since the event opened its doors allowed us to go ...

The original concept of combustion engines as we understand them dates as far back as the late 1800s. And while they are more or less a solved science today, they definitely didn't start that way.

Hybrid cars, trucks and SUVs have become ubiquitous. Thanks to technological innovations, some hybrids can easily travel over 600 miles on a single tank of gas. Hybrids typically have higher starting ...