Pete's car is apart by choice, not because something broke. There are a lot of supras running around with 550+rwhp without a problem. Problem with the Z's is that the guys that tend to make that kind of power are the ones that abuse the car and run them on the ragged edge at the track. There is a difference between having a 550+rwhp car that you drive normally everyday and a 550+rwhp car that you beat the piss out of everytime it is driven.