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 ...

Electric vehicles are taking the world by storm and the internal combustion engine’s fate looks sealed, but there’s still life in the old gas-burning power plant. At least that’s what Astreon ...

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 ...

A four-stroke engine is a magnificent thing. A complex machine capable of turning flammable liquid into useful work, it has dominated the automotive world for the best part of a century. Now, thanks ...

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.

Automakers once bet big on bizarre ideas—from swirling airflows to variable compression—and the results were as fascinating as they were short-lived. Automotive engineers have invested countless ...

Some agree that batteries are the clear winner in the race against hydrogen technologies, while others think the opposite. There's no such debate among internal combustion engine proponents. Almost ...