How much leather in the factory interior?

Hey group - I have a 1983 280ZX Turbo that has the tan velour interior with the ribbed fabric on the seats. I'm due for new seat covers but the ribbed velour material is no longer available and I don't like the look of the solid velour covers. I have the low-backs with the separate headrests.

I'm thinking about changing the seats to leather, but I'm wondering: in the cars with factory leather, is there any leather OTHER than that on the seats? If the seats are the only part that's different, then I can change to a more authentic seat material by ordering leather seat covers.

So - for any of you that have the leather seats - what are the differences in the interior other than the seat COVERS?

Thanks....