I was thinking this just today, we haven't had a really big, newsworthy crash this year (A la Surfers Paradise 02, or Laguna Seca's Airbourne moment 01)
F1 had big Crashes for Button, Firman, and the debacle at the start at Hockenhiem
IRL, well, we all know about the IRL this year
NASCAR had it's traditional Blowovers and big ones at it's plate tracks, and even that face plant and high ride at Mitchigan.
But CART....nothing major....Surfers was probably the worst we got...Fernandez launching himself airbourne off Manning at Mexico was another little "Biggie" if you know what I mean.
It's probably very fortunate we didn't get such a big crash, as it may get CART in the papers/on the news, but a REALLY big wreck could've put one of the smaller teams out of business......