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.
Holly crap, its an awful crash, RIP for the test driver, wonder at what speed the car was going, and why did he crash, afterall its a prototype, maybe a mechanical failure....