Don't take this the wrong way, it's fantastic that you are concerned about this (look at my car, full steel bar, yes I am concerned too).
I think this is that block in the city that we've all driven around a few times already. You'll find several threads here on this topic, and lots of discussion, and every month or so someone comes along and slaps another new thread down and we start the dance again.
Let's move the discussion back into one of the umpteen already-existing threads, or this whole site will become dominated by threads about this subject.