The design guys had all sorts of US stuff at their disposal to try, like every hubcab imaginable, every V8 engine, wheels etc. The original Polycast honeycombs were first seen on the SS prototype, made their way onto the 350Z and left GMH on the Ewe't. Those snoflakes were also seen on the turbo HX 4 door sedan, but obvioulsy left GMH on the LE prototype.