If you don't need a full blown PC in the car - some new PDAs make a much better addition and give a lot of the same functionality in a smaller form factor. I've been using my dell Axim X50v in my VX for over a year now. It has BT and WiFi built in, I use it with a Rickaline BT GPS unit and navigation is outstanding - on par with my wife's Infiniti FX35 built in GPS unit. I also use it for MP3 playback and video playback while not driving. The best part it is completely portable so I can take it with me anywhere. I highly recommend looking into that option as an alternative.