I recently autocrossed my NSX at the Hawaii SCCA event and funny enough I didn't do that bad in it at all despite many people saying that the NSX is a bad car for autocross. My car has the NA2 NSX-R suspension, NSX-R chassis bars, I/H/E, endless brake pads, brembo slotted rotors and I removed some stuff such as the spare tire, the engine cover and the carpets. My tire pressures were 38 in the rear and 33 in the front. Mind you this is my second time autocrossing and the average time for this particular track was 37 seconds I managed to get 35.4 seconds around the track besting some s2000's and M3's (which are much better cars for autocrossing) but I have to definitely say that it truely is really the person behind the wheels that makes the difference and then the car itself. More importantly I learned alot about my cars handling abilities at the limit of breaking grip which is why I highly recommend anyone who is curious about it to give it a try. I surely learned alot and I was surprized how well I was able to countersteer the car and keep it in control while aggressively throwing it into the corners. And more importantly it was tons of fun, and personally any excuse to have fun with your car and drive it to its limits in a safe controlled environment is more the reason to give it a shot.