 Complete the following phrase:  After the season, Wheldon left Panther Racing because of a lack of sponsorship and the No. 4 car was driven by rookie J. R. Hildebrand. He filed a 383,400 lawsuit against John Barnes in Marion County Superior Court on 18 August for late payment of his salary and of his share of earnings from his on-track achievements as well as taxation issues. The two reached a settlement on 1 October. Wheldon did not have a full-time seat for the 2011 season, and he missed the seasons first four races as he sought employment with another team to compete in the 