Porsche 918 Spyder chasing down 911 Turbo at Nurburgring

An interesting video has hit the ‘Tube showing a Porsche 918 Spyder chasing down a Porsche 911 Turbo at the Nurburgring. As far as we know both cars are prototype test cars being run by Porsche, which makes sense as the testing season at the ‘Ring has just begun.