Forget where I read this, but replace the plastic screws int he door lock with metal ones, as the plastic ones will break easily and the lock will fall in the door. Check the service history and see if the recall on the rear seat belts has been done. Oh, and the thermostat housing is made of plastic and will eventually fail, luckily a cheap metal replacement is available if you don't get it from the dealer. Other then that, treat it well, and it should last you forever.
EDIT: Also, sometimes the clock breaks.