Modern motor vehicles have been designed with crumple
zones which allow the dispersion of energy upon impact in an accident.
The force of the impact is directed inward to the areas designed to
collapse and thus absorb the inertia of the vehicles. Brush guards,
which are mounted to the body and/or frame circumvent the intention of
the vehicle`s engineering. The guards transfer the energy from the
moving vehicle, oftentimes a full size pick-up or SUV directly onto
the other vehicle in the accident. This can place the driver and
passengers of the other vehicle in greater harm than in an accident
involving properly functioning protective mechanisms.