I agree with the "watch the needle" comment. Sometimes ill just be running through the gears and you look down and your like "wtf..130?". The stability is also very impressive. I have flown past 150 and the car felt as solid and controllable as it does at 60.
The acceleration didn't blow me away, but I'm fully impressed with what it can do. Everyone who rides with me says its fast, and i get comments like "snaps your head back in every gear", ect. But that is usually from people who have never really been in any kind of sports car and are super exited to be riding in it.
Also, random note, the Z's engine is rough...but sometimes at high speed i downshift and hold a steady 6500rpms...at that point it tends to be very smooth, almost no shifter vibration...lol.
see if this link works...
http://www.facebook.com/photo.php?v=...type=2&theater
seems fast to me!