Mezue ahịrịokwu na-esonụ: Na F1, mgbe mmalite ya na-ekwe nkwa n'afọ gara aga, 1966 bụ afọ dara ogbenye maka Stewart; 3-liter H16 BRMs bụ ndị a na-apụghị ịdabere na ya, ọ bụ ezie na Stewart meriri Monaco Grand Prix na ụgbọ ala 2-liter engine. Ihe kachasị dị ịrịba ama n'afọ ahụ bụ ihe mberede ya na
Belgian Grand Prix na Spa-Francorchamps, nke kpalitere mkpọsa ya iji melite nchekwa na F1 ma mee ka ọ ghara ịga French Grand Prix na Reims.