 The Powertrain is only warranted for 60K miles.  My transmission needed replacing at 63K.  Nissan will not budge on 60K.  Plan on spending $4,000 on a new transmission (and only one year old!).  If you can afford the $4K, you still have to live with the heat shield rattles.  A thin, flimsy piece of sheet metal held on with a screw and  an undersized washer.   I would never consider any vehicle made by Nissan after this experience.