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Sergio Cresto (USA) (January 19, 1956 – May 2, 1986) was the co-driver of Henri Toivonen at the Lancia Martini team for the 1986 World Rally Championship season. He was also a former co-driver for fellow Lancia employee Attilio Bettega, who died in an accident during the 1985 Tour de Corse on May 2, 1985. His co-driver Maurizio Perissinot survived the crash uninjured. This event happened exactly one year before the accident that claimed the lives of both Sergio Cresto and his driver by then Henri Toivonen on May 2, 1986.
Sergio Cresto was born in New York on 19 January 1956. As an Italian American, Cresto lived in Ospedaletti, near Sanremo, away from his brother George A. Cresto in New York. He began racing in an Opel Kadett with Gerbino. In 1979, Cresto was Tonino Tognana’s co-driver in an Opel Kadett as well as in the more powerful Fiat 131 Abarth two years later. In 1981, Cresto and Tognana came in 8th in the Italian Championship. In 1982, Cresto was co-driver with another “top driver", Gianfranco Cunico, in a Fiat Ritmo 130, getting good results. The following year, Cresto again changed drivers and ended the season placing three times at the Italian national level: 6th with Cinotto after the 3rd-place finishes at Targa Florio and again at Quattro Regioni in a Lancia 037) 10th with Zanussi (after finishing 2nd at the San Marino Rally in a Lancia 037). With Zanussi, Cresto came in 3rd at Halkidikis as well that year, a European Championship qualifying race. He competed again in the same race the following year with Carlo Capone in a Lancia 037 Tre Gazzelle. After a long successful season and a duel with Toivonen and his Porsche, the Italians eventually won the European Championship. After Perissinot’s accident, Cresto was Bettega’s co-driver for two races qualifying for the World Championship. In 1985, he raced again with Zanussi for Lancia.
In 1986 Cresto was Henri Toivonen's co-driver in a Lancia Delta S4. After a strong start to the season, including a win in the Rally Monte Carlo, Toivonen and Cresto were the favourites for the World Championship title. Racingoing into the Tour de Corse with a 1:42 lead, they crashed during the eighteenth stage of the rally. Their Lancia went off the side of the road, plunged down a ravine and landed on its roof. The aluminum fuel tank underneath the driver's seat was ruptured by the trees and exploded. Toivonen and Cresto had no time to get out and both men burned to death in their seats. The accident had no witnesses close enough to clearly see the accident. Services for Sergio were held in Villastellone, Italy, on May 4th, 1986. The accident led to the FIA's decision to ban Group B cars after the 1986 season.
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- "Obituary 1". New York Times. 1986-05-07.
- MotorMania (2016-04-16). "El accidente que acabó con Henri Toivonen, Sergio Cresto y el Grupo B". MotorMania.info (in Spanish). Retrieved 2019-05-16.
- "The corner that killed Group B". Top Gear. 2013-05-19. Retrieved 2019-05-15.
- "Henri Toivonen Biography". www.thruxton.f9.co.uk. Retrieved 2019-05-16.
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