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Sunday, May 29, 2011, marked the 100th anniversary Indianapolis 500 at Indianapolis Motor Speedway in Indianapolis, Indiana. When the race debuted in 1911, the top average speed was 74.59 mph. Ray Harroun was declared winner, garnering the checkered flag in his six-cylinder Marmon Wasp after 6 hours and 52 minutes.
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Danica Patrick, driver of the #7 Team GoDaddy Dallara Honda, stands next to her car prior to the IZOD IndyCar Series Indianapolis 500 Mile Race at Indianapolis Motor Speedway on May 29, 2011 in Indianapolis, Indiana.
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Scott Dixon of New Zealand, driver of the #9 Target Chip Ganassi Racing Dallara Honda, leads the field into turn one at the start of the IZOD IndyCar Series Indianapolis 500 Mile Race at Indianapolis Motor Speedway on May 29, 2011.
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Scott Dixon of New Zealand on the first lap of the Indy 500.
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E.J. Viso of Venezuela, driver of the #59 Lotus KV Racing Technologies Dallara Honda, crashes into the wall at Indianapolis Motor Speedway, May 29, 2011 in Indianapolis, Indiana.
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IndyCar driver Ryan Briscoe (6), of Australia, and Townsend Bell crash into the wall during the Indianapolis 500 auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 29, 2011. Driver Bertrand Baguette, below, of Belgium, passes the accident.
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IndyCar drivers Ryan Briscoe (left) of Australia, and Townsend Bell crash into the wall during the Indianapolis 500 auto race in Indianapolis, May 29, 2011.
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Ryan Briscoe, and Townsend Bell (right), crash during the Indianapolis 500 Mile Race at Indianapolis Motor Speedway, May 29, 2011.
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On the very first stop, Will Power, of Australia, drove out of the pits with a loose left rear wheel, which flew off before he got back on the track. He wound up 14th.
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IndyCar pole-sitter Alex Tagliani, of Canada, led 20 laps but ran into handling problems that eventually sent him into the wall. He finished 28th.
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IndyCar driver JR Hildebrand, the leader going into the final lap, crashes into the wall on the final turn as driver Charlie Kimball passes in frame under him, during the Indianapolis 500 auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 29, 2011.
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Dan Weldon (right), driver of the #98 William Rast Curb Racing, takes the lead after JR Hildebrand (left) finishes hits the wall at Indianapolis Motor Speedway on May 29, 2011 in Indianapolis, Indiana.
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IndyCar driver JR Hildebrand, left, crashes into the wall on the final lap as driver Dan Wheldon, of England, takes the checkered flag to win the Indianapolis 500 auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 29, 2011.
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J.R. Hildebrand, driver of the #4 National Guard Panther Racing, finishes second after crashing at Indianapolis Motor Speedway on May 29, 2011 in Indianapolis, Indiana.
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Dan Wheldon of England celebrates with his son Sebastian at the start/finish line after winning the IZOD IndyCar Series Indianapolis 500 Mile Race at Indianapolis Motor Speedway on May 29, 2011 in Indianapolis, Indiana.
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Dan Wheldon of England hugs a fan in the victory circle after winning the IZOD IndyCar Series Indianapolis 500 Mile Race at Indianapolis Motor Speedway on May 29, 2011 in Indianapolis, Indiana. Wheldon's average speed was 170.265 mph.
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Dan Wheldon of England celebrates in the victory lane with the traditional milk after winning the IZOD IndyCar Series Indianapolis 500 Mile Race at Indianapolis Motor Speedway on May 29, 2011 in Indianapolis, Indiana. Graham Rahal finished third, followed by Tony Kanaan. Danica Patrick, leading with less than 10 laps to go, had to pit for fuel and wound up 10th.
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J.R. Hildebrand reacts after crashing in turn four on the last lap, at Indianapolis Motor Speedway on May 29, 2011 in Indianapolis, Indiana.