Ahead of round two of the season in Australia, the FIA is expected to issue a clarification of the rules relating to rear diffusers. The regulations permit a hole in the diffuser to allow access for the engine starter motor. However, there are concerns that teams could be exploiting this 'loophole' to gain aerodynamic benefit, by adopting unusually shaped starter motors in order to justify particularly large and sculpted diffuser openings. Don't be surprised if many have been modified come Melbourne so as to appease the scrutineers.
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