This might be more proof that the new Z will have GTR brakes on the production version.
370z front GTR Caliper bracket
I wouldn't be surprised at all if we end up finding out Z1 helped build most of the new Z from a fabrication perspective. It actually is really smart on Nissan's part. Get a big name Z shop to do work for you on new parts cut out large scale manufacturing cost and get aftermarket parts made for the 370z and the new Z at the same time. I honestly wouldn't even be surprised if we see Z1 selling a 370z to 400z motor swap conversion kit.