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GP Week : Issue 60
> F1NEWS> by Technical Editor Paolo Filisetti Coming back to racing after the long summer break there was plenty of changes on the cars. Many teams sported deep changes in their aero packages while McLaren brought, just for Hamilton, a shorter wheelbase version of its car. BMW was one of the teams that introduced the most extensive changes, with a new engine cover and also completely revised sidepods. 1 – Brawn vertical fins Brawn introduced some interesting changes to its bodywork, including vertical fins placed in front of the sidepods, in a similar fashion to the other teams devices. Brawn so far was the only team not using such devices. This element better directs the airflow towards the rear ends of the car, in particular the rear wing, to increase the efficiency of this element. It is important to remind that one big problem in the previous races was to get the tyres up to working temperature. Improved efficiency of the rear wing may in fact help in this respect. 2 – BMW bodywork As mentioned above, BMW introduced an huge array of changes on its car, notably a lighter chassis, but also a completely new aero package. In particular this package included a completely new engine cover, with a huge shark fin profile extending to the rear wing, and a narrower low section of the sidepods. These changes have the aim to provide a better aero balance of the car, and at the same time improve the efficiency of the rear diffuser, thanks to the narrower sidepods. The car also sported a rear wing with the additional central double profile, already used on other high downforce level tracks. 3 – Toyota front wing Toyota introduced a revised front wing, differing from the previous version in its flap, made of a single piece. It is a sort of ‘mix’ assembly with the endplates used prior to Hungary with newly profiled single element flaps. The changes aimed to produce slightly increased downforce, very useful on this track as it resembles in some way Monaco, not just for its harbour setting but also in terms of track layout. 10 3 2 Technical Update: Round 11 Valencia 1