Apparently a Porsche 998 Cabro prototype being driven on the Autobahn as part of a test crashed and the Porsche driver was tragically killed.
http://www.wreckedexotics.com/newpho...0215_001.shtml
In the US they have gone to the solid concrete barriers called Jersey Barriers. Here it is a metal guardrail which appears to have been set too tall for a Porsche. The car rather than bouncing off, went under leading to the unfortunate fatality.