Haven't used the navigation system very much in my car - I drive to work...I drive home, and I've been doing that for 11 years now so I pretty much know how to get to and from without help, thank you very much.
However yesterday, since I had to do a side trip via an unfamiliar route, I had the display set to the map most of the day and noticed something fun and interesting - it shows the speed of freeway traffic by laying lines along each side the highway you're driving that are either red, amber, or green, depending on the traffic flow. In addition, I noticed a yellow triangle with a skidded out car motif displayed for the other side of the freeway I was driving and, sure enough, when I came upon that spot there was a major accident there! Pretty cool stuff!
2011 Blue Ocean SL with 86,000 miles
2015 pack on 12/30/15
Bosch AGM 12v
Ecopia 422+ tires
L1 EVSE upgrade
Superbright LED lighting
2013 sun visors
GT-R map lamp lenses
Altima illuminated door switches