It would be nice if the semi-trailers and other high-riding vehicles with rear underride guards allowed for the option to remove them, just like we can remove the spare tires and other items. It would allow for some pretty mangled crashes. Right now, the bars are very robust (which isn't always the case in real life, anyway) and pretty much act like any-other fixed barrier
They are as robust as a proper under ride guard would be in real life. Of course there's examples of trailers IRL not meeting this requirement but as far as I am concerned, there is nothing unrealistic about the trailers right now (however, I will test this out.) Example: 1:50, 35 mph. I agree however, it would be nice if it was an actual part you could remove.
Right, a "proper" guard is as robust. But as the title of your video says, "MOST fail" in real life tests. So it would be great if we had the option to remove it to simulate the effects of a weak or missing guard