The Garmin Navis are ansich quite well thought out. The announcements are good and the graphics are not bad either. However, what bothers me and why I give only three stars for the Navi is the following point. In truck mode lights up as soon as you drive faster than 80 2 proceeds km / h, a road sign, accompanied by a ring tone in the display. That alone would not be so bad. But this tone is heard at relatively short intervals again and again. Even if I turn off all sounds. He sounds just not when I ask the Navi on mute, but I do not want, of course. And since it is totally unrealistic to jockeln exactly 80 on the highway is for me an absolute no-go. Nor is it so that I race with the truck. But I take it as between 85 and 90km / h, and this is a normal cruise speed for trucks. If you drive in the car or camper-mode does not this ring. In addition, the distance information often lags behind. For me, completely incomprehensible that are inaccurate in the premier outdoor Navi manufacturer, the GPS. Garmin is a leader in the air, water and outdoor navigation with great Navis and cm precise information, but in car navigation, it does not front and back.