Since this thread has been at the top of the page so much I guess I'll add my $.02.
What none of us seems to remember is that a car, ANY car, is a rolling collection of compromises from its roof right down to its wheels. When Honda decided to build our little gem it didn't pull out all the stops. To the contrary, it asked how far they could advance the state of exotic car building in a streetable, affordable ($65K?), and comfortable car.
If you take ANY component of this car you can find a way to make it lighter or more exotic. But at what cost and to what advantage? In the case of the NSX they resolved these conflicts on the side of performance and comfort.
Take the air conditioning, for example. You want a race car? Get rid of the air! The suspension. Slam the car, increase the shock and spring rates, add thicker sway bars. Leather interior? Carpets? Sound deadening? Electric wndows and seats? A TRUNK? Get real!
Honda even let the bean counters get in the way and added a steel (yes STEEL) rear bumper beam.
But look at what we all get in return. The most drivable, beautiful, race-able exotic in the world! I absolutely love my car. I give her a loving stroke every time I pass her by in the garage. Hell, I'd keep it in the HOUSE if I could figure out how to do it.
But mine is also slightly modified too. As I've mentioned in other threads, I have the short gears, a 4.23 R&P, headers, exhaust, sway bars, etc. My goal is to get better track times and not mess up the engineering balance that Honda achieved with my baby.
I've probably gone on too long here, but I just wanted to say, the car exists as a STREET car that'll kick ass and be comfortable. Now go on out and tune it to suit your individual needs. I know I am.