[inferiorhuman]

  I’ve typed this before in detail, but this is NOT A LOOPHOLE!

Sure it is. Going back to whenever, heavier vehicles classed as light trucks (or worse) have been subject to less stringent emissions and safety requirements. That's generally what folks are referring to when they mention regulations favoring trucks.

  Look at vehicle bodies from 2008 on. Larger every single revision.

That's been generally true since the fuel crisis subsided in the 70s.