Only 14 cars competed at the San Marino Grand Prix because of the FOCA boycott, leaving the Ferraris to compete with the Renaults until both French cars broke down. By lap 45, Villeneuve and Pironi were contesting the lead, with Villeneuve in front, when their Ferrari team signalled them to slow down. Villeneuve did so and was passed by his teammate; they swapped the lead again several times before Pironi passed Villeneuve on the final lap for the win. After the race, Villeneuve said that the "Slow" sign at Ferrari had always previously meant that the drivers should hold their positions, adding "People seem to think we had the battle of our lives! [...] I was coasting those last 15 laps."; Pironi said that "The 'Slow' sign means only to use your head [... not that] if you think you can win, don't do it." In an interview the following week, Villeneuve said that he would never speak to Pironi again.