Video: Pagani Zonda Revolucions sing on track

Last week we brought you the news that Ferrari was in the midst of developing a hardcore (yes, even more so) track-biased version of its new LaFerrari hypercar. It turns out the hallowed marque isn't the only Italian carmaker that has been fettling its wares, as this new video of two Pagani Zonda Revolucions undergoing a track shakedown proves.