 Nyora kupfuurira kweiyi ndima - Musi wa15 Gunyana 2017, zvakaziviswa kuti Honda aizove mutengesi weinjini kuToro Rosso yemwaka wa2018. Sechikamu chechibvumirano chacho, McLaren yakachinjisa kugovera kwayo injini kuRenault. Honda akataura kuti chinangwa chaiva chokuva pamusoro-vatatu injini mugadziri vari kudyidzana pamwe Toro Rosso nokuda 2018. Mwaka wakatanga zvakanaka nokuda Toro Rosso, pamwe injini Honda achiratidza kuva zvikuru zvikuru yakavimbika zvichienzaniswa yapfuura makore. Mutungamiri wechikwata Franz Tost akataura kuti Honda haisi yakaipa seyakagadzirwa nevakuru vekare, iyo unit inonyanya kukosha uye yakashamiswa nekushanda uye kugadziriswa kwakanyanya kweyuniti. MuBahrain, chikwata chakakwanisa kupedzisa muP4, mhedzisiro yakanakisa yaHonda kubvira paakadzokera kumutambo muna 2015. Kubva muna 2018, Honda akanga zvikuru ramped up ayo F1 kuedza, kusanganisira mari yakawanda, nani zvikuru zvivako uye zvakawanda zvinobudirira utariri mamiriro. Munguva yemwaka, kuvandudzwa kweHonda kwePU kwaive nekukurumidza uye kunobudirira neyuniti iri shanduko yakakura kwazvo yezvivakwa zvakatanga kushandiswa naMcLaren muna 2017. Toro Rosso akanga akasununguka pane zvinodiwa zvePU pane McLaren, zvichibvumira Honda kuwedzera ukuru hwezvinhu zvakasiyana-siyana, zvimwe zvacho zvakashandurwa zvoga zvakapa simba uye kuvimbika uye pasinei nekuwedzera kwehukuru, simba reHonda rakanga richiri rakanyanyisa pamunda. PaCanada Grand Prix, Honda akatanga Spec 2 yavo iyo yakapa kuwedzera kunoshamisa kwesimba ukuwo ichiwedzera kuvimbika. Red Bull iyo yakanga ichishandisa injini dzeRenault mwaka wose yakanga ine betsero yokuona kuti simba rayo rakaenzana sei neHonda iri muToro Rosso. Mushure mekuona kuwedzera kwekuita kweHonda nyowani uye kufadzwa nekuzvipira kwavo uye zvivakwa, RBR yakazivisa kupera kwechibvumirano chavo neRenault uye kuumbwa kwehukama neHonda ye2019 ne2020. 