Introduced in Malaysia and retained for China is this hole in the floor's footplate in front of the rear tyres. Its purpose is to create a vortex that improves the quality of the airflow directed into the side channels of the rear diffuser, thus boosting downforce.
As well as a modified rear diffuser, McLaren introduced this new front wing in China with a double flap on its upper deck and an end plate revised to better direct airflow around the front tyres. The effect is an improvement in the overall aerodynamic balance of the car. (Inset diagram shows...
It's not only Brawn's diffuser that is giving them speed, but a variety of clever solutions like this under-slung rear brake calliper. By mounting the calliper at the base (rather than the side) of the brake disc, Brawn have improved the overall packaging of the suspension, and lowered the centre of...
Introduced in Malaysia and retained for China is this triple-deck design. Toyota have added another internal extraction duct (inset - uppermost blue arrows) - which appears to help the airflow to work together with the underside of the lower beam wing - and a kind of turning vane at each end of the...
These drawings illustrate the position of the two holes (bottom left drawing - highlighted in bright yellow) in the underbody of the Brawn, in the vertical section where the reference and step planes meet. These boost the efficiency of the rear diffuser, but also need careful gearbox and suspension...
