This NSX FAQ entry has been migrated to the NSX Wiki -> http://www.nsxprime.com/wiki/Leather

[A/H]

Leather

Seat bolsters

Seat backrest

Front side of the headrest

Door panel inserts

Shifter knob

Steering wheel

Vinyl

Parking brake lever

Glovebox door

Knee bolsters

Back of the seat backrest

Dash

Notes

The leather has a urethane coat over the dye.  It is semi-permeable and will stain, but is water resistant.

They have to put the leather smell back into the cars (all cars, not just NSX) that come to the U.S. Customers don't like that smell in Japan.

Honda in Japan did extensive testing on what dash material to use. They did have a few with leather and the leather shrunk and the stitching pulled apart. That is why the fake dash but the real stitching.  In Japan you can get the stitching in red.

The best way to clean the interior is with a mild detergent and water.