Another bit that didn't make production is an engine oil cooler, a $780 part that Nissan recommends for any Z-car that will see track use, because the electronics put the engine into limp-home mode with a reduced rpm limit as soon as they detect potentially destructive oil temperatures. The Nismo Z we drove had the cooler fitted, as does our long-term 370Z. Nevertheless, the production Nismo 370Z will not get one — an odd oversight in a performance model.