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BMW Sauber F1.07 - chassis & wing fins 17 March 2007

Two horizontal fins (red arrow) have been added in Melbourne, midway up the side of the chassis. Shaped almost like an Arabian sword, the fins split the airflow coming out from the front wing, diverting it towards the sidepods inlets and, to an extent, the bargeboards. More fins (green arrow) have been placed inside the inner shields of the front wheel beneath the brake cooling ducts. Slightly curved, these help to reduce the turbulence generated in this area by the wheels' rotation, providing more aerodynamic stability.