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Toyota TF104 - illegal brake ducts

Toyota, like Williams, were excluded because their front brake ducts were too wide. Under the rules no part of the duct could be more than 120mm away from a line parallel to the inner side of the wheel - Toyota were just 3mm over, which Mike Gascoyne said was purely due to wheels' camber angle.

Williams FW26 - illegal brake ducts

Williams, like Toyota, were excluded because their front brake ducts were too wide. Under the rules no part of the duct could be more than 120mm away from a line parallel to the inner side of the wheel - Williams exceeded it by around 30mm, which would definitely have improved their braking...

Toyota TF104 - rear wing

Not a completely new solution, but one not used thus far in 2004, the TF104's rear wing featured a new profile with upwardly-curved edges. The benefits were greater downforce with less drag, a definite asset on Montreal's main straight.

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