I don't know if any of you saw the amazing crashes that happened this weekend and last in the US IRL IndyCar championship?
Here is the first crash at Michigan Speedway.
http://www.youtube.com/watch?v=k3NO_zYCvb4
And here is this week's at Kentucky.
http://www.youtube.com/watch?v=oK1VzL_n3ms
It is amazing how those cars just lift into the air. You can see how the aerodynamics work in the opposite way to intended once the cars start to flip and they just lift straight off the ground. Amazing.
And watch this next one for some more:
http://www.youtube.com/watch?v=w3coty3x2-U