The front end of the HSC concept definitely says NSX to me. Honda has done a good job of keeping the family resemblance intact. The dual front inlets seem to follow the currently in vogue (aerodynamically dictated by the need to get air flowing smoothly to the underbody?) practice among other supercars.
The shape of the rear fenders/deck from the front 3/4 view definitely has a touch of Enzo and Zonda in it. Again, I believe this is an aerodynamically dictated approach on mid engine cars.
As for the rear, well, I'm not sure what it looks like, but its not half bad.
And the split front air intake has one major practical purpose, the front plate won't block the air flow (for those of us who live in states that require front licence plates).
These days, I still sit up and take notice when a NSX rolls by. But my wife doesn't really understand what the hoopla is about. She comments that the car is wider and sits lower than "normal" cars but she doesn't understand why it costs $90K.
But with this new design, especially with that ass, the NSX is going to turn a LOT of heads, heads normally reserved for the Lambo and few Ferraris.
I really like the Lamborghini, I've always preferred them over Ferraris, which in my teen age years I've likened to mistresses for old people with erectile dysfunctions. The Enzo has generated a lot of press, and no doubt its abilities are impressive, but the styling places it squarely in Gotham City, and what is with the front overhang?
I like the 360 Modena. Atheletic, powerful, rounded but sharp, and looks great on the road.
The new NSX should be a great car to compete against these Italian offerings. I am a bit concerned about the narrow race-car-like bubble cock-pit since car editors in the US like to complain about lack of space and this is after all a Japanese automobile. One of the biggest appeal of the original NSX was its every-day versatility. I don't think it will be good for the NSX to lose that edge in practicality. Honda has always been about bringing offering combinations of things that seem contradictory. The VTEC mechanism, for example, allows great power and great fuel economy in the same package. I hope this far more exotic update of the NSX hasn't robbed this great car of its many inviting characteristics.