However, the vast majority of drivers haven't seen just how big semi-trucks can be ... as remotely impressive is the world's biggest hydrogen-powered mining truck, which is a true sight to ...

Called the Oshkosh P-15, the enormous fire truck can carry 6,100 gallons of water and fire it through two turrets.

Hydrogen-powered trucks are making waves in the world of clean transportation, and the H2Rescue truck just set a new Guinness World Record to prove it. This impressive vehicle, developed by ...