the only problem mechanical are that pushing the car will turn up the oil temp past the avg of 220 260 and and some have opted to install an external oil cooler, that's not to say everyone's driving there Z's hard the other which is no surprise is the blind spot looking to your right, that can be addressed by adjusting the mirror out more, other than that Z is a pretty solid car there are things that some can nit pick but most cars have something to nit pick. PS. the paint like mentioned is soft so keeping it waxed with Zaino will correct and protect the paint on this subject it has to be made clear most automaker are using water based paint.
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