Editor's Note: The purpose of the Shop Series has been to acquaint and enlighten the car enthusiast with some of the more involved aspects of automotive mechanics, vehicle repair and modification. As ...

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 ...

Mazda’s SKYACTIV-Z tech could change the way automakers and drivers look at gas-powered engines amid today’s significant EV investment push. Expert engineer Masahisa Yamakawa at Mazda said that heat ...