IndyCar Series officials have compromised with angry drivers and agreed Saturday to make a slight change to the new double-file restart rule that will be in place at the Indianapolis 500 for the first time. Instead of throwing the green flag for restarts when the cars are even with the first pit box on pit lane, the restart zone will, as previously done, allow the drivers to accelerate in the area between Turns 3 and 4. The change will enable the outside line of cars to avoid some of the loose rubber (known as marbles) that builds up on the outside area of the turns. Read more: http://sports.espn.go.com/rpm/racing/indycar/indy500/2011/news/story?id=6602870