The 2006 season was largely shaped by the relative competitiveness of the two tyre manufacturers. The change to V8 engines did very little to upset the apple cart and overall reliability from the all new engines was good.
Again there was a distinct convergence in aerodynamic design, with the only notable difference between teams being their keel layout and placement of bargeboards, which still falls into two camps.
There was also a lot of technical controversy along the way this year, with flexing wings, tower wings, wheel fairings and mass dampers all being disputed.
Personnel-wise, the year also was notable for the departure of two key technical directors mid-season - almost unheard of in Formula One. Additionally, the movement of key staff between the teams has been greater this year than is usually the case.