For the 1966 Formula One season with new rules, the Ferrari 312 of Surtees consisted of a 3.0 L version of the 3.3 L V12 which they had previously used in Ferrari P sports car racers, mounted in the back of a rather heavy F1 chassis.
Surtees in Bandini sta ostala dirkača, občasno pa so dirkali še Rodriguez, Vaccarella in Bob Bondurant.