Mezue ahịrịokwu na-esonụ: Ferrari 643 bụ ụgbọ ala Formula One nke Steve Nichols na Jean-Claude Migeot mere ma Scuderia Ferrari wuru maka iji ya na 1991 Formula One oge. Wuru n'oge May na ẹkenam na
French Grand Prix ọ dị ka ọ nwere ikike ịgba ọsọ n'ihu. Alain Prost tozuru oke n'ahịrị nke mbụ wee bute ụzọ, ọ bụ ezie na Nigel Mansell mechara gafere ya na Renault ya Williams FW14, ebe nke abụọ n'ọsọ mbụ nke ụgbọ ala ahụ yiri ka ọ na-ekwe nkwa. Ewezuga na ọ fọrọ nke nta ka ọ bụrụ na ọ na-anọ n'ihu akụkụ nke grid, ọ gaghị adị, Otú ọ dị.