The 312 T5 was a heavily revised version of the 312 T4 for 1980. However, the car was unreliable and slow, as the wide 312 boxer engine did not suit aerodynamic requirements. For the first time since 1973, Ferrari failed to win a single race all season, finishing only tenth in the Constructors' Championship. The best results were three fifth places, and Villeneuve qualified third in Brazil. The T5 was succeeded in 1981 by the completely new 126CK.
Summarized from the sources cited below; every figure in the text was automatically verified against the sources.
Learn moreA lost year
A lost year
Cosworth DFV-powered teams made further aerodynamic progress in 1980, leaving Ferrari without a chance. The T5 was unreliable, slow, and ineffective against the competition. While rival manufacturers improved throughout the season, development of the T5 virtually stalled, and the car grew ever less competitive. For the first time since 1973, Ferrari went an entire season without a win and finished just tenth in the Constructors' Championship; the all-new 126CK followed for 1981.
Summarized from the cited sources; every figure was automatically verified against the sources.
1975
1976
1978
1979