IndyCar race cars come apart as they spin, bump, crash and fly through the air as a tightly packed group of racers disintegrate into a 15-car pileup following an on track incident during the IZOD IndyCar World Championship at the Las Vegas Motor Speedway in Las Vegas on Sunday, Oct. 16, 2011. Indy driver Dan Wheldon, two-time winner of the Indianapolis 500, went air born in his number 77 Sam Schmidt Motorsports car, seen left, then struck the safety fence where his car came apart. Wheldon was taken to University Medical Center in Las Vegas where he was pronounced dead. (Las Vegas Review-Journal file)