An updated Nissan 370Z is expected to debut later this month at the Chicago Auto Show. Up until now, Nissan has been focusing much of their attention on the all-new Pathfinder, which debuted in concept form last month at Detroit. As for their sports car lineup, the GT-R is obviously their flagship. The 370Z, which debuted back in 2008, is still very much around and now it\'s time for the old Z to receive an update.Details are mostly unknown at the moment, but according to themotorreport.com.au, there are some changes that we can except to see later this month at the Chicago Auto Show.They\'re predicting that the basic design of the headlights and taillights will remain about the same, but there could be new LED daytime running lights and other small updates at both ends.There\'ll also likely be new front and rear bumpers. In terms of power, changes are expected to be few if any simply because there\'s little extra power available from the 3.7-liter V6 (with the exception of the NISMO model). If Nissan does increase output, revisions to the intake and exhaust systems will be likely. More details to come in just a couple of weeks. Photos displayed are of the 2011 Nissan 370Z.