Update to an old thread.
1993 #623 is a Brooklands Green with a black roof and tan interior.
The car is currently owned by Comptech.
Repaint & Reupholster? Nope, it's a factory paintjob and factory interior. Impossible, you say?
This car was a factory one-off 1993 model built in May 1993 and painted in Brooklands Green. It was built at the request of American Honda to bring to dealer seminars and to show management what the car would look like, in order to make a decision on whether or not to offer this color for 1994.
I was quite surprised to learn of the existence of this car. So, that makes at least 2 custom factory one-offs known to be out there. (The other being Larry Ellison's '96 Sebring Silver T).
While it's too late now that production is almost over, I guess if you knew the right people at American Honda during the 15 year production run, you could have chosen a custom color combo on your NSX from the numerous choices offered in Japan.