 To make matters worse, a $5 million bonus was offered if a driver from another series or racing discipline win the race, as it would be the last race for the current chassis, a record 34 cars entered this race (the Indy 500 field, by comparison, is capped at 33 cars).As a result of pack racing in combination with many cars and inexperienced drivers, a major crash occurred 13 laps in, injuring several drivers and killing the defending Indy 500 winner Dan Wheldon.This event led to massive media criticism of oval races for open-wheel vehicles.