 Nyora kupfuurira kweiyi ndima - Muna 1985 Bignotti akaenda pamudyandigere uye timu yakarongedzwazve seChikwata Cotter naGuerrero vachityaira yavo Nhamba 9 Master Mechanic Yechokwadi Kukosha Kurume 85C-Cosworth DFX. Zvichienzaniswa nemwaka wapfuura 1985 yakanga iri nyumwiro yakasimbiswa nenzvimbo yechitatu pakupera kweIndianapolis 500uye wechina muStrohs 300K paLaguna Seca Raceway. Mwaka uyu wakaonawo Guerrero achirega kubva mumakwikwi kaviri achitungamira, kutanga kuMichigan 500 kuMichigan International Speedway nekuda kwenyaya dzegiya bhokisi uyezve kuMolson Indy 300 kuSanair Super Speedway nekuda kwekudonha kwaGuerrero. Guerrero akapedza mwaka wechi17 mumapoinzi aine 34 mapoinzi. 