Engadget: What if you could plug any smartphone into your car and control your GPS, music and apps with large, vehicular controls? That's the entire idea behind Nokia's Terminal Mode. We trekked over to Volkswagen's research laboratories in Palo Alto, California to test the first working prototype actually integrated into a car -- a VW Passat, to be precise -- and got to put some German pedal to the metal with Ovi Maps guiding our every move. What did we think? Not bad for a product that's nearly two years away. Find out why (and get a video tour!) right after after the break.