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 ...

Various types of combustion engines were developed and tested during the second half of the 19th century. In the following decade, many such engines were produced with a power delivery of 6 HP and ...

The turbocharger is more popular than ever, appearing on the Ford Mustang, the Dodge Charger, and the Chevrolet Corvette.

As electrification rises, these 10 high-revving engines—from a 2.0-liter four-cylinder to a 6.5-liter V12—remain thrilling ...

An exhaust note helps give a cars its personality, and what that personality is has a lot to do to the type of engine it has. Toyota has released a helpful explainer on why that is. It starts with the ...

If you've got a bit of knowledge about gasoline-powered cars, you likely know that internal combustion happens when fuel and air are mixed, a spark is introduced, and the fuel burns inside the engine.

Production cars have come a long way since the invention of the combustion engine, and car manufacturers have always sought to innovate and push the limits of what is possible. An area of particular ...

Will joined the TopSpeed team over two and a half years ago, bringing his lifelong automotive passion, writing experience, and editorial expertise along with him. Whether classic or modern, American ...