You're spot-on regarding the horrendous nav interface on the Mercedes. I found it dangerously unusable. When I posed that concern to the MB dealer I was rathe

You're spot-on regarding the horrendous nav interface on the Mercedes. I found it dangerously unusable. When I posed that concern to the MB dealer I was rather snidely informed they had training available to teach people how to use it. Yeah, hard no. Bought a Cayenne instead.