1975 Italian Grand Prix

The race start, with the poleman Lauda (n. 12) and Regazzoni (n. 11) in their Ferrari 312Ts

The Italian supporters were gathered in expectation of Ferrari gaining their first championship in 11 years-on home ground, with many Austrians travelling over the border to support Niki Lauda and were delighted when Ferrari filled both spaces on the front row. Tony Brise delighted his boss Graham Hill by gaining a third-row spot.

Lauda only needed to finish 5th or higher to be champion; but Argentine Carlos Reutemann and Brazilian Emerson Fittipaldi both needed to win with Lauda out of the points. Fittipaldi, who had won in Argentina and Great Britain, was Lauda's strongest challenger.

On Sunday morning there was a cloudburst and for some time the future of the race was in jeopardy, but the rain dried up with about an hour to go before the start. Clay Regazzoni led from Lauda and Jody Scheckter.

Vittorio Brambilla's clutch burnt out on the first lap, whilst Bob Evans halted with a failed engine plug. There was a chaotic accident at the chicane-Scheckter had to take to the escape road as around him Jochen Mass hit the kerb, damaging his car's suspension. Ronnie Peterson collided with another car, jamming his throttle open. Mario Andretti and Rolf Stommelen retired with accident damage and Brise spun across the chicane. Harald Ertl soared over the top of Hans-Joachim Stuck's car, damaging the uprights.

Fittipaldi overtakes Lauda six laps before the end of the race

After six laps, Carlos Pace retired with a broken throttle link, soon joined by Hans-Joachim Stuck and Lella Lombardi. The Ferraris were circulating 1–2 with Clay Regazzoni leading majestically from Niki Lauda. On lap 14, Emerson Fittipaldi passed Carlos Reutemann for third place, and Reutemann's involvement in the championship was effectively over; he finished 4th in the race. Despite the Ferraris being way ahead, Fittipaldi would not give up the chase, carving down a gap of over ten seconds. With just six laps left, he managed to pass Lauda.

Meanwhile, Patrick Depailler had taken James Hunt for fifth only to spin off down the escape road. Hunt, Tom Pryce and Reutemann were duelling, Pryce taking the place when Hunt spun off on lap 27—but ceding it to him after a further ten laps. Harald Ertl was a lap down, but drove so well that Pryce could not overtake him.

Regazzoni took the flag, Lauda was third and champion and Ferrari won the championship for the first time since 1961 in front of their home crowd.