President Donald Trump cleared the records of nine aftermarket diesel tuners and mechanics convicted of federal Clean Air Act ...

As the Trump administration pulls back from enforcing diesel emissions laws, the president says the pardons are just common ...

The McMurtry Spéirling Pure is now on sale at $1.4 million with 1,000 hp, a 100-kWh battery, and a 1.55-second 0-60 time powered by its unique fan-downforce system.

A space thruster using superconducting magnets completed its first orbital tests and could someday propel spacecraft using ...