There’s a possibility that Porsche is working on a RS version of the Cayman.
While there’ll never be a Turbo version -- it would overlap the 911 -- a lightened Cayman with a rollcage and race-style seats with harnesses has been snapped circulating at -- where else? -- the Nurburgring, according to Autocar. Expect the suspension to be uprated too. It could be badged as either an RS or take the Clubsport name -- Porsche's traditional name for a lightened version of a standard car.
Source: Pistonheads