There are going to be 3 models available. Guessing I would say the GT-R, GT-S and what ever the other model is. GT-R being most expensive. They have been road testing this car for sometime. I am sure they have most of the bugs worked out of it. I don't think they want to go through all the issues they did with the 350Z. As far as proving itself, by looking at the numbers it made at the Ring, it has already succeeded in beating it's predecessors.