We've gathered photos from our Car Tech reviews of every major automaker's software interface. These interfaces are what you see on a car's LCD, and we've covered manufacturers from Mercedes-Benz to GM. Many of the interfaces are poorly designed, probably taken straight from the original equipment manufacturer who built the car's navigation system and stereo interface. For our comparison, we concentrated on music screens, as these show on-screen buttons and fonts. Take a look and tell us which company you think offers the best and worst interface.