This car has the highest fun factor of any I have owned in 40 years of driving. It's beautiful looks turns heads wherever I go and it is a LOT of fun at the track or on the street. It is amazing that a car nearly 20 years old can compete in every meaningful way with some of the very best of today. The handling is superb, ergonomics excellent, and the sound of that engine revving to 8000+ rpm right behind your head intoxicating! While I may buy additional cars, I can't see myself ever selling my NSX.
The car is a beautifully balanced package. It is hard to single out one thing, but if I had to, it would be the handling and road feel.
There is no such thing as too much power, so I guess a supercharger would be a nice option. I have already upgraded the springs, brakes, tires and wheels to great benefit.