[city41]

The issue is updating the system with new maps. My car's nav system is now about two years old and I find about 1 in every 20 addresses or so it doesn't recognize.

Overall I do feel built in nav systems offer the best experience, I just wish car manufacturers could figure out a better update process.

[AIMunchkin]

100% agreed, given that newer cars now have 4G connectivity, one ought to be able to subscribe for a modest fee to download it.