Despite electrification taking the lead as an alternative source of propulsion, some automakers, including Toyota, Honda, and ...

A better mousetrap? Even now, as electrification seems poised to end the internal combustion engine’s long run as the transportation motivator of choice, enterprising tinkerers continue to propose ...

Mazda 13B rotary engine in a white Mazda RX-7 engine bay. - TTTNIS/Wikimedia Commons When it comes to unconventional engine design, few exceed the Wankel rotary in terms of weirdness. Despite that, ...

The Astron Aerospace H2 Starfire is a clean burning hydrogen and water powered internal combustion engine alternative to battery cell technology. There is very little parasitic power loss with the H2 ...

Not every engine has a set of pistons that move up and down in a cylinder. The Wankel, or rotary engine, delivers its power with rotational force rather than a reciprocating mass that hammers out ...

Jack Hubbell is a European based writer and automotive enthusiast who joined the HotCars team in 2024. Jack has been building cars and motorcycles since a young age and was a member of the SCCA from ...

Mazda’s revival of its iconic rotary engine as a battery-replenisher for a version of its electric car provides an alternative to pure EVs and plug-in hybrids but will eventually fall foul of an EU ...

With the Skyactiv-Z engine and a rotary-powered Iconic SP on the way, Mazda is doubling down on greener gas-powered innovation. As many automakers rush to embrace electric vehicles, Mazda is standing ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

When it comes to unconventional engine design, few exceed the Wankel rotary in terms of weirdness. Despite that, the same basic principles of internal combustion apply here: Fuel and air are mixed and ...