I made the switch from a 997 C2S to a 996 X50 three years ago becuase although the C2S is an almost perfect road car, it felt too weak for the track abuse.

I added coilovers, more power, Corsas, a short shifter and upgraded brake pads and fluid to the X5O which made it very hard for GT3s to catch at the Ring. And still had the back seats for small kids.

But if you don't track your 997 C2S I would recommend keeping it, as the 996 Turbo is really getting old and for road use is not as pure a sports car as the one you already have.  


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