The Nürburgring is a great challenge to test the speed of a car. Therefore, beat his own record of opponents and puts the sportsmanship of any model above suspicion. And when it exceeds a Ferrari 599 XX then ... It was what made the Pagani Zonda R, completing a lap at the German circuit in 6:47, a reasonable difference of 11 seconds over Italian rival.
Both Pagani Zonda R, Ferrari 599 XX are models based on production versions, but not approved for walking in the streets.