Fascinating. Horrible. Destructive! Disgusting. Mesmerizing. Crunchy. Awesome. There really aren't enough words. And now, for some strange reason, my teeth hurt.
Postscript: I can't stop watching this. As Wojdyla said, "that thing set my hair on fire it was so awesome." I have composed a haiku about the moment. Feel free to build on it. (Wait, no: Please build on it.)
A pile of engine
A death supreme and crunchy
Love that strange munch munch.
Hat tip to SLRSpeedshop!