I concur that a builtin nav is hugely more convenient than anything on a mobile phone
The built-in nav: - does not consume data bandwidth (and thus does not incur roaming charges when out of home country)
- works in GPS blind spots such as tunnels and mountain valleys (really important for me)
- integrates perfectly with the car (like muting radio, dinging a phone call)
- can be operated 100% from the steering wheel, without removing hands
- can be seen always from the driver's seat, without fumbling for some small mobile device
- never needs a passcode to activate the screen
- never runs out of battery power
As for accuracy of maps and traffic info, that varies hugely depending on your area of the world you drive in.
I have no issues with built-in nav map accuracy or with traffic info data, it works really well
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XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65.
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