Montana 600 or BMW Navigator Adventure

Due to the Lifetime Updates cards, 8GB (4GB compared to the Montana 600) main memory, the send discreet housing in black, I have decided for the construction and otherwise equally priced BMW Navigator Adventure (BMW Kirsch). The instrument-making a great impression. All stable, battery lasts forever. The route planning on the unit with pins is awesome and the readability of the display increases with the sunlight (and not vice versa).
Good are the different modes (leisure, outdoor, Nüvi, Custom Data Fields small, etc.).

So far, I miss the following features, so it is really an all-in-one:

- It would have a "Zümo mode" provide for motorcyclists, so I simultaneously on the Map screen can display 4 data fields in the display plus the Small Turn besides clock. Here there are only the Nüvi mode with max. 1 adjustable field or the "Small Data Fields" mode, which does contain 4 data fields, but no Turn Arrow with distance information - which is at a Navi without voice guidance via loudspeaker or a Bluetooth "must have". Speed ​​limit display is also only in the Nüvi mode available.
- It would like the Zümo models give a POI search capability "along the route", so far none
- A redirect function or even an alternative route preview is also desirable
- A data field (Distance to waypoint) is missing

Nevertheless, I forgive 3 stars - the Fourth or Fifth possibly only after completion software.