I have enjoyed built in Nav in my vehicles - but the problem is the upkeep. Most companies want a fairly healthy price to get map updates, and even then I doubt many built in navigation systems allow for real time traffic updates.
I really liked the system on my 2015 VW Golf TDI. I liked it so much I paid about $100 then to get it on my phone to use in other vehicles. Then Garmin purchased the company and bricked the software. What I liked about it most is that it used a reverse method of input, and autofilled as options became limited. Want to go to a town, it would autofill the current state (so generally one click to continue), the town name would take about 3 letters before getting down to the last option, street name was about 3 letters on average (as it only had to search street names of the town) - then all you had to type completely was the street number (if you cared about that level of detail).
I really liked the system on my 2015 VW Golf TDI. I liked it so much I paid about $100 then to get it on my phone to use in other vehicles. Then Garmin purchased the company and bricked the software. What I liked about it most is that it used a reverse method of input, and autofilled as options became limited. Want to go to a town, it would autofill the current state (so generally one click to continue), the town name would take about 3 letters before getting down to the last option, street name was about 3 letters on average (as it only had to search street names of the town) - then all you had to type completely was the street number (if you cared about that level of detail).
