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Toyota TF106B - front wind development 02 July 2006

A heavily revised version for Indy, designed to increase the car's high-speed performance, reportedly one of its weaker points to date. Compared with the previous design, the spoon profile (1) is now wider and slopes down less abruptly than before. The small winglets (2) on the inner edge of the endplates have been removed, as have the T-winglets (3) on the main profile. The flap (4) is also different, being reduced in area and less curvaceous than its predecessor. All these revisions reduce downforce, but dramatically improve top-end performance - as shown by Jarno Trulli's drive through the pack to fourth place in the race.