Penske: IndyCar sure to investigate wheel that flew over stands from Indy 500 wreck yoursourceone.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yoursourceone.com Daily Mail and Mail on Sunday newspapers.
IndyCar owner Roger Penske says he is certain series officials will investigate what led to a wheel coming loose during a crash in the Indianapolis 500, which ended up sailing over the catch fence and grandstands before landing on a parked automobile.