CNET has assembled a gallery of interface shots from various in-car navigation and media systems, commenting on the strengths and failures of various designs. I'm shocked by the preponderance of blue and grey.
GM's interface is nicely done, with a good, deep color and a convenient tabbed design for easy access to different functions. But we think GM could have better brand differentiation, as we've seen this same interface on everything from a Cadillac Escalade to a Suzuki XL7 (built for Suzuki by GM).
Photos: Automotive interface design [Reviews.CNET.com]