[Stay on top of transportation news: Get TTNews in your inbox.] Advanced researchers and engine makers say the internal combustion engine’s ability to be more efficient and run on greener fuels means ...

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 ...

Toyota is revolutionizing the automotive industry with its groundbreaking W-Piston Free-Piston Engine, which achieves an impressive 50% efficiency. This innovation not only promises enhanced ...

HOT ROD’s archives are chock-full of brilliant tech reports that truly are timeless. This one, drafted by Jim McFarland for our February 1972 issue, provides an extensive look at how important airflow ...