After the 1970 race, Ferrari set about improving the 512. Widened by 100mm, with an improved and lightened aerodynamic chassis, the V12 engine was also uprated to produce 580 bhp. The new version, the 512M ("modificato") debuted at the end of the 1970 season with a win to Ickx/Giunti. The 512M modifications were offered to the customer teams, but not applied to the works cars as Ferrari had decided to give up any official effort with the 512 in order to prepare the new 312PB for 1972.