The Associated Press' Jenna Fryer has reported Red Bull is planning to leave NASCAR at the end of the 2011 season. The AP report explained a team official traveled to Michigan International Speedway this weekend to "inform industry leaders" of their decision.
Since joining NASCAR in 2007, the two-car Red Bull organization has struggled to produce the results expected. In their inaugural season, both Brian Vickers and AJ Allmendinger struggled to simply qualify for races. Since then, the team has one victory with Vickers, but has continued to struggle.
The team currently fields cars for Vickers, who is in the final year of his contract, as well as Kasey Kahne, who will move on to Hendrick Motorsports at the end of the season.
Red Bull also funds two Formula One teams, including current series leader Sebastian Vettle, as well as a host of other action sports.
No reason was given for their departure, nor was it clear what would happen to the team's current employees.
Be sure to check back as this story is sure to develop further.