During the design's first season, in 1970, Ickx battled with Lotus's Jochen Rindt and won three Grands Prix, while the emotional Italian Grand Prix was won by Clay Regazzoni, following the death of Rindt in the week preceding the race. In the remaining races, Ickx could not pass Rindt's point score for the drivers title, and Lotus won the Constructors Championship ahead of Ferrari.