When routing with a mkgmap (svn rev. 907) generated routable map, my nüvi gets seriously confused about this area: http://www.openstreetmap.org/?lat=47.44357&lon=8.69386&zoom=17&layers=B000FT... * Two of the motorway-links there look like residential roads on the device * way 4987473 is labeled '67' although there is no such ref or name for this way in the OSM data * The way 10864230 (highway=secondary) is labeled "Ramp" on the garmin Another area that shows similar problems: http://www.openstreetmap.org/?lat=47.479862&lon=8.704816&zoom=18&layers=B000... Again, motorway link 4248871 is unnamed in OSM, but on the Garmin, it is labeled with the name of a nearby river (Töss, id: 4255496). It also gets rendered like a residential road. As a side effect, in those two areas, the garmin omits some turn-instructions (e.g. to take the ramp to the motorway). I also noticed that when taking a different route as the one suggested by the device, it takes much longer for the garmin to recalculate the route than with the built-in map. Are these known deficiencies? Cheers, - Michel