RRRRRR achoo! rRRRRRRRRRRR achoo! rrRRRRRRRRR achoO!
But is it a turbo wastegate or a supercharger blow-off we're hearing?!?! I'm betting a supercharger from the engine they unveiled last year and the whine in the video.
bwahaha, forced induction sneeze always reminds me of Snot Rod, one of the characters from Cars:
Link to original page on YouTube.