Have at it, boys

[1] The final laps of the 2011 Showtime Southern 500 saw Kyle Busch get tangled up with Kevin Harvick and Clint Bowyer.

[1] With the fans' interest at heart and the increased safety of the new car, NASCAR refused to change the way which they policed the racing events;.

[3] "One of the limits is if drivers put each other into danger", Brian France explained in an interview after the Harvick-Busch incident at pit road.

After Busch's one-weekend ban for the incident and also after Dan Wheldon's death, the "have at it, boys" era officially came to an end.

NASCAR's action mathematically eliminated Busch from contention for the Sprint Cup in 2011, though any realistic chance of him winning it ended earlier in the Chase.