Here’s a video of a current crash test (was there with myself, the company in which I worked commissioned the one) with a 36tonne that rushes into an impact wall at 80km/h…it really made noise 😉 The impact wall was not reinforced with steel, but with a fiberglass reinforcement to prevent “road rust” of the reinforcement…http://www.youtube.com/watch?v=xQDXnISGXhw