Ah, Street Atlas... how I miss that and don't. I get the small screen vs. large screen, but now that I'm back to a truck & trailer, I don't have room for a laptop while moving like I did with the motorhome and the area in front of the doghouse...
Prior to getting our Android Auto enabled Ford, I was running Google Maps on either an Android tablet or iPad, both which had GPS capability.
This past summer, I downloaded our entire itinerary from Chicago to Yellowstone with some buffer knowing that there'd be no cell service inside the park. Worked fine. But yeah, not much planning capability.