FWIW, I got to drive a friend's new 1LT 2014 C7.
Good:
steering response has been tightened up quite a bit from the C6s - faster response, weightier feeling especially at speed
auto rev matching is instantaneous, and awesome, sounds great too
power, power, power
engine sound is incredible
interior is a huge upgrade from the C6s, both aesthetically and feel/quality wise
seats are much firmer and more supportive than the la-z-boy feeling seats of the C6
the body felt super stiff, and everything felt buttoned down tight. no squeaks, rattles, groans at all. time will tell how this ages.
Bad:
Big! After getting used to the NSX's short front and "nothing-but-road" view out front, it was unnerving having a picnic table in front of you
Poor blind spot / rear visibility
Still feels like a corvette (not quite as tossable/flickable feeling)
The way the motor revs is smooth, however, as you go past 3k rpms you can feel a "wall of resistance" as the engine starts making more and more noise to make the revs climb. pushrod and 2 valve may contribute to this. The NSX, I've noticed, revs as effortlessly from 4k-6k rpms as it does from 1k-3k rpms, whereas the "resistance" level changes through the range in the LT1 vette engine.
The NSX feels like there's nothing surrounding you as you drive - the vette, you can feel a lot of car to your sides, front, and rear. The weight of the car in the NSX feels concentrated right where you are sitting (well, maybe a half foot behind your right shoulder), whereas in the vette you feel the weight surrounding you, front and back.
Overall, a very nice car and a very noticeable improvement in almost all aspects over the previous C6s (I owned a 2009 C6 fwiw). Looks great in person, sounds great, drives really well, especially if you're used to the corvette feeling. Perhaps I am spoiled by the NSX's manual rack, but in the NSX, you feel like you are steering the car with your hands. In the C7, you feel like you are using the steering wheel to tell the car where to go, and waiting for it to obey. It handles and corners with sheer grip and even weighting at the ends of the car, rather than centralized balance and lightness. It's quite a bit more responsive than the C6s were, though. Big improvement. Yes, I know the C7 would absolutely destroy my stock '91 NSX in an autoX, road course, drag strip, braking test, etc etc, but the way it *feels* is very different.
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