Mezue ahịrịokwu na-esonụ: N'afọ 1993 na 1994, Coulthard bụ onye ọrụ Williams Grand Prix Engineering dị ka onye ọkwọ ụgbọala nyocha ha. O nwere ebe a na-agba ọsọ mgbe Ayrton Senna nwụsịrị na
1994 San Marino Grand Prix. Coulthard natara oku ekwentị site n'aka onye isi otu Frank Williams iji nwalee ụgbọ ala Williams na Jerez circuit n'ime ụbọchị anọ, na-eme ka ọ ghara ịgba ọsọ Formula 3000 na Pau.