If not tracked I would use the Michelin Pilot Sport  4S  all year long. 

It is better suited then a cup to drive on public roads as no need to be warm . Better when rain. Good enough in winter when no snow. And way enough grip in summer for driving on speed limited roads. 


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 964 Carrera 4 --  997.2 C2S , -20mm -- 991.2 GT3 RS