Would you say that the styling/design/engineering accommodated other markets/contemporary variants, or not?
Rhetorical question: How about other models, or was the S30-series Z somehow unique?
NB: I'm not saying that the S30-series Z was conceived, styled, designed and engineered mainly as a Japanese market model (who would say that?) but that the cars themselves - and the components they are built up from - tell us that the "Made For The USA" story is more of an advertising slogan than anything else. If you've seen all the contemporary variants in the metal and examined them closely, I don't see that you can think other than that these cars were very cleverly designed and engineered to accommodate several different contemporary variants and markets. Just like pretty much all of Nissan's product of the same period, in fact.