 Nyorai kuenderera mberi kweiyi ndima - MunaGunyana 2014, zvakaziviswa kuti Bottas naMassa vaizochengeta madhiraivha avo naWilliams mwaka wese. Panhangemutange yokutanga yomwaka muAustralia, Bottas akakodzera sechitanhatu pamakwikwi, asi akakuvara musana panguva yekukodzera. Akaendeswa kuThe Alfred Hospital kunovhenekwa, uko akaonekwa aine kukuvara kwenyoro kumusana kwake kwakaderera, uye haana kubvumidzwa nemushonga kumhanya. Mwaka waBottas naWilliams hauna kuita zvavaitarisira. Williams yakarasikirwa muhondo yokuvandudza kuFerrari munguva yechando uye yakanyura mberi shure kweMercedes. Bottas akawana maviri podium apedza mumwaka wa2015. Yokutanga yakauya paCanada Grand Prix apo Ferrari yaKimi Räikkönen yakasangana nechinetso chekugadzira injini yakaguma nekutendeuka kwake, ichisiya mukana uri nyore wepodhiyo kumutyairi weWilliams. Nzvimbo yechipiri yepamusorosoro mumwaka wacho yakauya muMexico shure kwevaviri veMercedes. Makwikwi maviri akanga apfuura, Bottas akanga ari munzira yekupedza wechitatu muRussia Räikkönen asati arovera naye achiedza kumhanya pakupedzisira kwemakwikwi. Sergio Pérez akapiwa mubayiro wepodhium, nepo Räikkönen akarohwa, achimuwisira pachinhanho chechisere uye Bottas akarega. Bottas akapedza ari wechishanu muDrivers Championship achikunda mumwe wake ane ruzivo Felipe Massa kwegore rechipiri rakateedzana. 