with 15 points. Guerrero returned to the series in 1980 with Argo Racing Cars in an Argo JM6-Toyota. During the season he scored five victories at Thruxton Circuit (twice), Cadwell Park, Brands Hatch and Oulton Park. He tied for second in points with Kenneth Acheson, each with 95 points. European Formula Three While competing in British Formula 3 Guerrero competed in European Formula Three. He again drove for Angila Cars in an Argo JM3-Toyota. At the end of the season he scored 2 points to finish in 25th place in the championship. European Formula Two In Guerrero began competing in European Formula Two for Maurer Motorsport in a Maurer MM81-BMW. He won the Jochen Rindt Memorial Trophy at the Thruxton Circuit. His next best finishes were a pair of 4th-place finishes at the Gran Premio del Mediterraneo at Enna-Pergusa and the Gran Premio dell'Adriatico at the Misano Circuit and he finished 7th in the championship with 16 points. Formula One Guerrero began competing in Formula One in 1982 for Ensign Racing, beginning the season in a No. 14 Café de Colombia/Moda Caribu Ensign N180B-Ford Cosworth DFV at the season-opening South African Grand Prix. He failed to qualify for the event due to Guerrero's Formula Two team Maurer Motorsport and its boss Willy Maurer filing an injunction to Ensign team boss Morris Nunn and as a result Guerrero was withdrawn from the race. An official press report from Nunn stated that Guerrero was "in an inappropriate physical and mental condition to drive." Guerrero returned for the following race, the Brazilian Grand Prix, in a new Ensign N181. He again failed to qualify for the race. Guerrero qualified for the third race of the season, the United States Grand Prix West, starting 19th and finished 15th after crashing 27 laps into the race. Ensign skipped the San Marino Grand Prix due to the FISA–FOCA war and Guerrero then failed to qualify for the Belgian Grand Prix. At the Monaco Grand Prix Ensign's tire supplier Avon withdrew from Formula One and that left the team tireless. The team got some older tires to use for the race, but Guerrero failed to qualify. Michelin started supplying tires to the team after Monaco and Guerrero qualified for Michelin's first race for the team, the Detroit Grand Prix, starting in a respectable 11th place. In the race Guerrero was involved in a crash 6 laps into