I agree. So when are you getting a GTR?
Look at the end of the day, if all things being equal (age, price, etc) the Porsche is a better car. You only have to drive it to realise that. Comparing the Cayman S I had out on track to my 370z, I'd say they handle very similarly. The Cayman felt a bit more clinical which for me wasnt particularly a good thing and the interior in it seemed rather bland - although better built than the 370z. It did handle better though so you have to give it that. Given the choice I would take a Cayman S as its that bit better drive and you get the badge, but theres no way in hell I am willing to pay the premium they demand for it.