Taking a stab at it in order of appearance:
1951 625 Formula 1 car Juan Frolian Gonzalez, Piero Taruffi, Luigi Villerosi & Alberto Ascari were the main drivers
1967 312 Formula 1 car CHris Amon, Mike Parkes, Ludovico Scarfiotti & Lorenzo Bandini were the main drivers
1971 312 B2 Formula 1 car...