The owner of this Brabus McLaren Mercedes SLR Roadster must be a very responsible man! He realized that he cannot drive his car fast on public roads because it’s dangerous. Instead he unleashes his supercar in… an underground parking. The guy who filmed this whole event from the passenger seat explains – after expressing his deep excitement – that they hit 150 km/h, probably 10 times the speed allowed in such facilities. It does sound nice though that SLR!