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2006 trends - rear wing slits 13 December 2006

They may not have been as noticeable as the front wing revisions, but there were significant changes at the rear. At the start of the season Toyota's TF106 (left) featured multiple horizontal slits in the top edge of the endplates. The slits help reduce turbulence generated by the endplate profile and cut drag in the boundary area between the endplates and the flap. McLaren (middle top) soon adopted the solution and indeed, as with the double-profile front wings, most teams followed suit, including Ferrari (right) on the 248 F1 and Red Bull (middle bottom) on the RB2.