Toyota TF109 - revised brake ducts
For Sepang, Toyota have introduced this quite sophisticated front brake duct, with a venturi shape to improve the airflow inside the duct and hence improve the cooling of the brakes. Brake specialists Brembo have supplied updated callipers to all six of their customers - BMW Sauber, Brawn GP, Ferrari, Red Bull, Toro Rosso and Toyota - for this race.
Williams FW31 - rear diffuser 'hole'
From this angle you can clearly see the controversial opening (in yellow) in the protested Williams diffuser. This brings more air into the central part of the diffuser, allowing it to work harder to increase downforce. Most rivals believe this hole to be against the spirit and/or wording of the regulations and the design's legality will be considered by the FIA's International Court of Appeal on April 14. Also note the small splitter in the central diffuser.downforce. Most rivals believe this hole to be against the spirit and/or wording of the regulations and the design's legality will be considered by the FIA's International Court of Appeal on April 14. Also note the small splitter in the central diffuser.
McLaren MP4-24 - asymmetric sidepods
For Sepang, McLaren have introduced asymmetric sidepods, the left one now housing the electronics box for the car's KERS system. This means that compared to the Melbourne design, the bodywork is more bulbous and wider in section at the rear. Note also the wider exhaust opening to evacuate more hot air in the higher temperatures of Malaysia.
Ferrari F60 - KERS battery packaging
A KERS-related failure on Kimi Raikkonen's car in opening practice at Sepang allowed us to see how the system's large battery is packaged in a carbon fibre box within the F60's chassis. It is located in a cavity under the chassis, the presence of which means a significantly smaller fuel tank than would otherwise be possible. With the base of the battery box now effectively forming a second floor, it also means the fuel is higher in the chassis, raising its centre of gravity.
Red Bull RB5 - front suspension pickup points
The RB5 is almost certainly the most innovative and extreme car on the 2009 grid. Its chassis is very high at the front, with its unique U-shape meaning the front suspension's lower wishbones share almost a single pickup point, with just a small separation in between (red arrow). This solution has the benefit of allowing a large volume of air to pass under the chassis and feed the (conventional) rear diffuser.
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