ON FACE VALUE, THIS COMPARISON LOOKS simple enough. You have around £75,000 to spend on a Porsche, reckon 350bhp or so is more than adequate, and want a car that is going to really enthral on both road and track. You want choices and here they are: you can either buy new, as in the case of a well-optioned 718 Cayman GTS, or buy something much more bespoke, older, and with an even more focused sporting persona, in this case a 996-generation 911 CSR Evo from Porsche specialist RPM Technik.
The Cayman is the easy option. In GTS guise it already comes with much of the kit that helps it meet our road and track brief, and its reputation for handling excellence precedes it. Sadly, its reputation for having a…