Navigation is usually such a rip off. Costs them a couple hundred bucks in parts and software maybe and they charge 2,000-5000 for nav/tech packages. Especially when XM is a subscription model to a third party and rear cameras are now required by law. Going forward, they should put MirrorLink and CarPlay functionality for anyone with a smartphone.
Something like the NISMO, at least, if not all of a sporty car like the Z, should have a GTR-style MFD giving performance metrics and trickling down that technology from the halo car.
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