I was in a 2006 Z51 vette with nav and got the 09 370 with nav next. The Z nav is 300% better than the vettes and also has XM traffic bundled in to it (subscription). I live and travel in the SE US quite a bit and have found the nav to be very accurate.
As far as some saying "dont get the nav get after market".....you can say that about any part on the car. Aftermarket WILL NEVER look as good as the OEM nav unit and doesnt really offer anything additional that I want or need. I find the Bose to be good enough as I am well beyond my loud stereo days.
No glaring issues on the nav unit. It really comes down to what you want in the car and how much you want to spend.
|