We digTomTom's Plus service because it provides all of the aforementioned necessities and additional navigation ... aftermarket nav system, in our honest and infinitely wise opinion, is best.

with the choices in dashboard navigation expanding greatly. Road and Track does an excellent job of sussing out the differences between various types of aftermarket nav systems, from in-dash to on ...

All of these provide turn-by-turn directions and real-time traffic data to help you find the best and fastest route to wherever you’re going. Some, however, are better than others, depending on your ...