For the 1977 season Ferrari opted to keep the now fully recovered Lauda and have Reutemann replacing Clay Regazzoni, who moved on to the Ensign team. In the first two races, Reutemann finished third in Argentina and won in Brazil, outdriving Lauda in both events and taking the championship lead. For the Brazilian race, Ferrari had just designed a new rear wing that was put on Reutemann's car and not Lauda's, so Reutemann went into this Brazilian GP with a performance advantage and a psychological high- the psychological aspect being crucial to how Reutemann would perform in the race. Reutemann would later state in an interview that this was his best race. Over the course of the season, however, Lauda reaffirmed his position as team leader, and the Austrian won his second championship, while Reutemann finished fourth and did not win another race that year. Reutemann also did not have a good relationship with Ferrari chief engineer Mauro Forghieri, who was weary and distrustful of Reutemann and his temperament, even though Reutemann consistently finished races in the points and rarely ever retired (although the Ferrari 312T2B was a very reliable car).