the race and was credited with a 19th-place finish. After that, Guerrero then only failed to qualify at the Dutch Grand Prix and the French Grand Prix. Guerrero scored his best finish of 1982 (and his entire Formula One career) at the German Grand Prix with an 8th-place finish. At the season-ending Caesars Palace Grand Prix Guerrero qualified in 15th place. The car's engine then blew in the warm up and Guerrero missed the race. Guerrero was unranked in the championship standings due to the fact that he had scored no points. In 1983 Ensign Racing merged with Theodore Racing and as a result Guerrero began driving the No. 33 Café de Colombia Theodore N183-Ford Cosworth DFV. Guerrero only failed to qualify at the Monaco Grand Prix and became more consistent in finishing races. Despite this Guerrero's best finishes were a pair of 12th-place finishes at the Dutch Grand Prix and the European Grand Prix. At the end of the season Guerrero again failed to score points and was as a result unranked in the championship while rookie teammate Johnny Cecotto managed to get a 6th-place finish and with it 1 point towards the championship for himself and Theodore (although Cecotto failed to qualify four times to Guerrero's single time). Indy car racing CART Indycar World Series Guerrero made his Indy car debut in 1984 for Bignotti-Carter Racing in the No. 9 Master Mechanic March 84C-Cosworth DFX with legendary chief mechanic George Bignotti serving as Guerrero's chief mechanic. The high point of Guerrero's season was a 2nd-place finish at the Indianapolis 500 where he also shared the race's rookie of the year award with Michael Andretti. Guerrero's best finishes outside of Indianapolis were a pair of 5th-place finishes at the Budweiser Cleveland Grand Prix at Burke Lakefront Airport and the Michigan 500 at Michigan International Speedway. Guerrero finished out the season 11th in points with 52 points, only one point out of the top ten. Guerrero won the series' rookie of the year award. In 1985 Bignotti went into retirement and the team was reorganized as Team Cotter with Guerrero driving their No. 9 Master Mechanic/True Value March 85C-Cosworth DFX. Compared to the previous season 1985 was a disappointment highlighted by a 3rd-place finish at the Indianapolis 500 and a 4th at the Stroh's 300K at Laguna Seca Raceway. The season also saw Guerrero retire out of a race twice