By reliable SUV I’m assuming you mean “loaner car courtesy of my local land rover dealer”

I can’t claim personal credit for it, but the steering wheel spike. It’s 4 inches of stainless that replaces the airbag and is pointed right where your skull is going to collide with the wheel. By having this shiny bastard glaring at you as you drive, the feeling of invincibility that comes from being in 4000+ pounds…