Forget getting the car equipped with navigation and just purchase a Garmin unit...much better and it updates for life. The 135 is a fantastic BMW! Good luck with your search!
2013 Porsche Carrera 4
2011 Panamera 4S; 2012 Mini CooperS
Prior BMWs: `05 645CiC; `07 650i; `08 M6 convertible; '08 135i; `11 750ix MSport
"You think that's air you're breathing now?"