Dan Wheldon IndyCar crash: Were racers driving recklessly?
Dan Weldon's death in a fiery 15-car crash on Sunday has left the motor sports world in shock. Could the crash have been avoided?
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Wheldon's car flew over another and caught part of the catch fence just past the apex of turn two.
The incident left Townsend Bell's car upside down and smoldering cars strewn along the track.
"IndyCar is very sad to announce that Dan Wheldon has passed away from unsurvivable injuries," IndyCar Series CEO Randy Bernard said in a statement. "Our thoughts and prayers are with his family today."
The race was canceled and drivers returned later for a moving and tearful five-lap tribute.
A popular figure, Wheldon was the 2005 Indy Racing League IndyCar Series champion and he won the Indy500 race that year and also in 2011 -- the 100th anniversary of the event.
When the drivers returned to the track, Wheldon's fellow British driver, Scotsman Dario Franchitti, was sobbing uncontrollably as he was strapped back into his car.
"I could see within five laps people were starting to do crazy stuff," said Franchitti, who avoided the incident and with the cancellation of the race won his third straight series title.
"I love hard racing but that to me is not really what it's about. One small mistake from somebody...
"Right now I'm numb and speechless," he said. "One minute you're joking around in driver intros and the next he's gone.
"He was six-years-old when I first met him. He was this little kid and the next thing you know he was my team mate," said Franchitti, who raced together with Wheldon at Andretti Green Racing.
"We put so much pressure on ourselves to win races and championships and today it doesn't matter."
Crews lined up along the pit lane and fans in the stands stood silently as the drivers paid tribute to the popular Wheldon.
The cancelling of the race meant that Franchitti won his third straight series title.
Wheldon, who did not have a regular ride this season, could have won a $5 million prize which was on offer at the Vegas event for a non-full-time winner of the season finale.
The Englishman had not raced since winning the most recent Indy 500 in May.
After winning eight British national titles in karting and then finishing third in the 1998 Formula Ford championship in Britain, Wheldon moved to the United States in pursuit of better opportunities.
He clinched the F2000 Championship Series in 1999 with six victories and then moved into IndyCar where he won rookie of the year honours in 2003. Wheldon claimed the 2005 series thanks to six wins for Andretti Green Racing.
Wheldon leaves his wife Susie and their two young sons.
(Editing by Mark Lamport-Stokes/Peter Rutherford)