Ford's Mustang Mach-E navigation system is not worth a CR_P. I needed to go to the next city for a doctors appointment. I live very close to a main 4 lane highway. As it goes to my destination. It changes to a 4 lane divided highway. Then I exit it onto a 4 lane divided expressway. Finally I exit onto a 4 lane main road through the city. Last turn I am less than a mile from mu destination. Every quick. My return was to city 10 miles below I origin. My friend who live there. He told me a route to his house. I missed the route number to his place. I punched in his address into Ford's navigation. It showed his address. Hit tapped "GO". A blue line showed up on a route. I followed it through all the secondary streets and all the stop lights. Where did I end up. I was at the junction where I exited off the 4 lane divided onto the 4 lane divided expressway. From a simple express travel to a complicated city streets.