What is that growing on my car dashboard? Is that a tree? Indeed, Ford and Honda's next-generation dashboard instrument clusters feature trees (a vine in Ford's case) that grow more lush as drivers maximize their fuel economy. Leaves grow like crabgrass in springtime if you use a light touch on the accelerator and go easy on the brakes. Drive like a speed car racer and they'll wither faster than general motors stocks.
Via Autopia. See also: On the Road, Little car trees, Information Decoration.