This post/info=my opinion
Why do you think I don't want to hear **** other than "hey great idea"?? I'm not going to make a PVC bumper now! I didn't realize it would turn brittle and break- I was thinking of it as more flexible.If you're not convinced: Take a piece of pvc pipe and seal it. Leave it out in the sun for a month or two. Then, go out and hit it with a sledge without eye protection. I rather you wear an eye patch than whoever is unlucky enough to be in your way...
Good gawd some people don't want to hear **** other then "hey great idea".
Not to give you a hard time, but wouldn't the speed of an immobile object be zero.I haven't seen the episode of Smash Lab, but the preview, and it has inspired my idea... a radar that compares your speed and the speed of immobile objects ahead of you and when the system sees a threat, it would launch an explosives pack under the vehicle in your path, knocking it out of the way.
I freely admit that I may be overlooking a few safety items, but I consider this an alpha-level effort.