F1’s 3-liter formula that began in 1966 was hospitable to American constructors. All three U.S. domestic marques that achieved 1st place in a Grand Prix did so in that period.
The winners were Dan Gurney’s Eagle at Spa in 1967, John Watson in a Penske in Austria, 1976, and Alan Jones at the same venue the following year, when the future World Champion drove a Shadow to his first GP victory. For this carmaker, as for the other two, it would be an only win.
