In 2002, Nunn entered one car each in Champ Car and the rival Indy Racing League. The IRL entry for Giaffone proved more competitive than Kanaan's Champ Car entry, encouraging the team to concentrate purely on IRL a year later. With Toyota and Pioneer backing, the former F1 driver Tora Takagi joined the team. He finished 10th in 2003, while Giaffone missed races because of injuries. He was replaced by Alex Barron, who won the Michigan race. For 2004, only one car was entered, for Takagi, whose performance was not impressive after a heavy crash at Twin Ring Motegi. Other than a joint effort with Fernández Racing at the 2005 Indianapolis 500, Nunn closed the team in 2005 and retired.