Kammala jumla mai zuwa: Farkon fitowar P83 ya zo ne a tseren farko na 1966 a Monaco, Stewart yana gwada motar a aikace kafin ya tuka P261 zuwa nasara a tseren. A cikin
Belgium Hill da Stewart sun yi aiki tare da P83, dukansu sun zaɓi yin amfani da P261 a tseren, Stewart yana da mummunar haɗari a Masta wanda ya fitar da shi daga tseren na gaba a Faransa. Biyu P83s yanzu suna samuwa kuma a kusa da sauri Reims kewaye Hill saita lokaci wanda zai kasance mai kyau isa ga na huɗu a kan grid, amma ya fara takwas a cikin P261 maimakon bayan da gearbox matsaloli.