Kann wärmstens den GARMIN Streetpilot 2610 empfehlen. Der muss nicht eingebaut werden. Ich hatte den Streetpilot III und war schon sehr zufrieden, der 2610er toppt aber den IIIer locker. Der kann fast alles und hat IMHO keine Schwächen.
http://gpsinformation.net/sp26xx/sp2610rev.html
"Our overall impressions are that the StreetPilot 2610 is a new generation of low cost Automobile Navigation Systems. While it is not the least expensive of the truly automatic self contained address-to-address car navigation systems (SP-III, iQue 3600, and some other PDA based systems are less expensive), we consider the SP-2610 to be the best in the low price class of Car Navigators. At about US$800, (Check Latest Prices Here.) we think the SP-2610 is a great product for the money. In fact, we think the GUI is the easiest to use of any car navigator we have tested. With the SP-2610 and its optional 2GigaByte CF Map Memory Card, I believe we can eliminate having to use paper maps for automobile road navigation (in the covered areas of the world)."