Tracy was signed by Team Kool Green for the 1998 season.
The year was a struggle for the team and Tracy personally, as he finished no better than fifth in any race and ended up a disappointing 13th in the championship.
The low points of the year came in Houston when he crashed out of second place after colliding with his teammate Dario Franchitti, leading to an altercation with team owner Barry Green when Tracy returned to the pits, and when, while leading the Marlboro 500, he spun out during a caution lap 3 laps from the finish.

Several on and off track incidents during the year earned him the wrath of CART officials and he was excluded from the 1999 season opener.
Although he missed the first race, Tracy still had a very successful season as he recorded seven podium finishes and had victories at Milwaukee and Houston.
He finished third in the championship.

The 2000 season was also a success for Tracy as he won at Long Beach, Road America and Vancouver and finished fifth in the championship.
Tracy sat on the pole for the Michigan 500 with a new track record speed of 234.949 mph (378.114 km/h).

Tracy's fourth year with Team Green in 2001 was one of the worst of his career as he went winless and finished 14th in the championship.
2002 was another year of struggle for Tracy.
He did win a race at Milwaukee but failed to finish 10 of 19 races and was 11th in the championship.

With Team Green, Tracy returned to the Indianapolis 500 in 2002 for the first time since 1995.
A late-race caution flag for a crash appeared at nearly the same time he passed Hélio Castroneves for what would have been the race lead.
Team Green protested the result but the official investigation put the determination of the leader of the race as the sole discretion of the race officials.
Tracy and Barry Green contended that the decision was made to stop a CART driver beating the regulars of the rival Indy Racing League, which is run by Indianapolis Motor Speedway owner Tony George.
Tracy was signed by Team Kool Green for the 1998 season. The year was a struggle for the team and Tracy personally, as he finished no better than fifth in any race and ended up a disappointing 13th in the championship. The low points of the year came in Houston when he crashed out of second place after colliding with his teammate Dario Franchitti, leading to an altercation with team owner Barry Green when Tracy returned to the pits, and when, while leading the Marlboro 500, he spun out during a caution lap 3 laps from the finish.
Several on and off track incidents during the year earned him the wrath of CART officials and he was excluded from the 1999 season opener. Although he missed the first race, Tracy still had a very successful season as he recorded seven podium finishes and had victories at Milwaukee and Houston. He finished third in the championship.
The 2000 season was also a success for Tracy as he won at Long Beach, Road America and Vancouver and finished fifth in the championship. Tracy sat on the pole for the Michigan 500 with a new track record speed of 234.949 mph (378.114 km/h).
Tracy's fourth year with Team Green in 2001 was one of the worst of his career as he went winless and finished 14th in the championship. 2002 was another year of struggle for Tracy. He did win a race at Milwaukee but failed to finish 10 of 19 races and was 11th in the championship.
With Team Green, Tracy returned to the Indianapolis 500 in 2002 for the first time since 1995. A late-race caution flag for a crash appeared at nearly the same time he passed Hélio Castroneves for what would have been the race lead. Team Green protested the result but the official investigation put the determination of the leader of the race as the sole discretion of the race officials. Tracy and Barry Green contended that the decision was made to stop a CART driver beating the regulars of the rival Indy Racing League, which is run by Indianapolis Motor Speedway owner Tony George.
Paul Tracy