If my eyes don't deceive me, those look like Michelin Pilot Super Sports. Which is odd considering they have been replaced by the PS4S. One of the German mules was also wearing Pilot Super Sports. Wonder what the OE tire will end up being. I believe the M2 come with Continentals?
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.. and have a body shop do some work for a track custom, more akin to the HKS TRB03 ( obviously not as extreme ). The fun is in customizing so an ugly rear welcomes a cleaner lean aftermarket version.

