Ok ang integration ng Waze sa Apple Car Play. I think its enough to be your permanent GPS unit, provided your head unit is capable of such. Even obscure destinations, it is in the Waze directory.

If your data plan is not an issue and your destination has signal, Waze is perfect. If it is an issue, you could download the maps and use Google maps to assist you. It has some traffic info but not as extensive as Waze.