Forget spending tons of money on a dedicated GPS device. With a smart phone and a car mount, you can have free up to date maps and socially reported traffic in your car.
My favorite car mount is a Brila Easy-to-use Car Mount Holder. It’s strong, sturdy and never falls off unless you intentionally agitate it. Attach it to the car windshield just below the rear view mirror so your phone is always within your peripheral vision. This way you are not taking your eyes off the road while driving.
My favorite GPS app is Waze which uses social interaction to provide real time traffic and shows you where police are hiding among other things.
Side note, Waze is an Israeli company Google bought back in 2013 that puts their own Google maps to shame.