Although the year was a significant improvement on 2005, Honda were unable to challenge for the world championship after impressive winter testing form. The car was quick in qualifying, but less so in the races. A performance slump mid-season also led to the team parting company with the car's designer, Geoff Willis, and he was replaced by the inexperienced Shuhei Nakamoto.
However, things improved from the German GP, culminating in Button's first F1 win in Hungary. Button was generally the stronger driver throughout the season, and it was felt that he deserved to get Honda's first win in their F1 return.
Honda finished the season strongly with a run of points finishes, culminating in a third-place finish for Button at the final race in Brazil. They also successfully introduced their 2007-spec engine before the season was over.
The team eventually finished fourth in the Constructors' Championship, with 86 points.