The other thing I noticed from the wind tunnel results was that at very low ride-height the resulting stall of the diffuser reduced the drag of the car (due to reduction of what is known as ‘induced drag’, which is proportional to the lift or downforce of the vehicle). So we added a button to the steering wheel which, when pressed and held down, dropped the rear ride-height. The drivers used this in areas where they were power- rather than grip-limited (generally in the straights, but also, in Nigel’s case, for very fast corners such as Blanchimont at Spa, where, with sufficient courage, the
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