Performance-tuned vehicles, tight bends, breath-taking speeds... racing is an inherently a dangerous sport. Despite advances in driver safety and track improvements, sadly driver and spectator deaths occur. Some tracks will always be more dangerous than others. The guys at XCAR put together a video which they claim are the ten most dangerous tracks in the world. Among the tracks featured are Monaco, Guia Circuit, Spa-Francorchamps, Daytona and the Nürburgring.