Just dropping in to say that brake fading + other problems is a known issue for the 370Z on the track.
Not a problem on the road !
Also on the S2000 the car rear end wanders during hard braking especially on the AP1 models and are not the safest car to drive at higher speeds. This was improved on AP2.
That is my 2 cents of knowledge on these 2 cars, even If I got one of these as a gift I'd sell them and get something else
(my opinion!)